Remove dangling whitespace at the end of some lines.

libc/aio/aio_suspend.c

@@ -68,7 +68,7 @@
  *   asynchronous I/O request via aio_read(), aio_write(), or lio_listio().
  *   This array may contain NULL pointers, which are ignored. If this
  *   array contains pointers that refer to aiocb structures that have not
- *   been used in submitting asynchronous I/O, the effect is undefined. 
+ *   been used in submitting asynchronous I/O, the effect is undefined.
  *
  * Input Parameters:
  *   list    - An array of pointers to asynchronous I/O control blocks.
@@ -78,7 +78,7 @@
  *             structure that determines a timeout on the operation.  If
  *             the time referred to timeout passes before any of the I/O
  *             operations referenced by list are completed, then
- *             aio_suspend() returns with an error. 
+ *             aio_suspend() returns with an error.
  *
  * Returned Value:
  *   If the aio_suspend() function returns after one or more asynchronous
@@ -86,7 +86,7 @@
  *   the function returns a value of -1 and sets errno to indicate the
  *   error.  The application may determine which asynchronous I/O completed
  *   by scanning the associated error and return status using aio_error()
- *   and aio_return(), respectively. 
+ *   and aio_return(), respectively.
  *
  *   The aio_suspend() function will fail if:
  *

libc/math/lib_trunc.c

@@ -1,6 +1,6 @@
 /****************************************************************************
  * libc/math/lib_trunc.c
- * 
+ *
  * This implementation is derived from the musl library under the MIT License
  *
  * Copyright © 2005-2014 Rich Felker, et al.

libc/math/lib_truncf.c

@@ -1,6 +1,6 @@
 /****************************************************************************
  * libc/math/lib_truncf.c
- * 
+ *
  * This implementation is derived from the musl library under the MIT License
  *
  * Copyright © 2005-2014 Rich Felker, et al.

libc/math/lib_truncl.c

@@ -1,6 +1,6 @@
 /****************************************************************************
  * libc/math/lib_truncl.c
- * 
+ *
  * This implementation is derived from the musl library under the MIT License
  *
  * Copyright © 2005-2014 Rich Felker, et al.

libc/misc/lib_crc8.c

@@ -74,37 +74,37 @@
 
 static const uint8_t crc8_tab[256] =
 {
-  0x00, 0x3e, 0x7c, 0x42, 0xf8, 0xc6, 0x84, 0xba, 
-  0x95, 0xab, 0xe9, 0xd7, 0x6d, 0x53, 0x11, 0x2f, 
+  0x00, 0x3e, 0x7c, 0x42, 0xf8, 0xc6, 0x84, 0xba,
+  0x95, 0xab, 0xe9, 0xd7, 0x6d, 0x53, 0x11, 0x2f,
   0x4f, 0x71, 0x33, 0x0d, 0xb7, 0x89, 0xcb, 0xf5,
-  0xda, 0xe4, 0xa6, 0x98, 0x22, 0x1c, 0x5e, 0x60, 
-  0x9e, 0xa0, 0xe2, 0xdc, 0x66, 0x58, 0x1a, 0x24, 
+  0xda, 0xe4, 0xa6, 0x98, 0x22, 0x1c, 0x5e, 0x60,
+  0x9e, 0xa0, 0xe2, 0xdc, 0x66, 0x58, 0x1a, 0x24,
   0x0b, 0x35, 0x77, 0x49, 0xf3, 0xcd, 0x8f, 0xb1,
-  0xd1, 0xef, 0xad, 0x93, 0x29, 0x17, 0x55, 0x6b, 
-  0x44, 0x7a, 0x38, 0x06, 0xbc, 0x82, 0xc0, 0xfe, 
+  0xd1, 0xef, 0xad, 0x93, 0x29, 0x17, 0x55, 0x6b,
+  0x44, 0x7a, 0x38, 0x06, 0xbc, 0x82, 0xc0, 0xfe,
   0x59, 0x67, 0x25, 0x1b, 0xa1, 0x9f, 0xdd, 0xe3,
-  0xcc, 0xf2, 0xb0, 0x8e, 0x34, 0x0a, 0x48, 0x76, 
-  0x16, 0x28, 0x6a, 0x54, 0xee, 0xd0, 0x92, 0xac, 
+  0xcc, 0xf2, 0xb0, 0x8e, 0x34, 0x0a, 0x48, 0x76,
+  0x16, 0x28, 0x6a, 0x54, 0xee, 0xd0, 0x92, 0xac,
   0x83, 0xbd, 0xff, 0xc1, 0x7b, 0x45, 0x07, 0x39,
-  0xc7, 0xf9, 0xbb, 0x85, 0x3f, 0x01, 0x43, 0x7d, 
-  0x52, 0x6c, 0x2e, 0x10, 0xaa, 0x94, 0xd6, 0xe8, 
+  0xc7, 0xf9, 0xbb, 0x85, 0x3f, 0x01, 0x43, 0x7d,
+  0x52, 0x6c, 0x2e, 0x10, 0xaa, 0x94, 0xd6, 0xe8,
   0x88, 0xb6, 0xf4, 0xca, 0x70, 0x4e, 0x0c, 0x32,
-  0x1d, 0x23, 0x61, 0x5f, 0xe5, 0xdb, 0x99, 0xa7, 
-  0xb2, 0x8c, 0xce, 0xf0, 0x4a, 0x74, 0x36, 0x08, 
+  0x1d, 0x23, 0x61, 0x5f, 0xe5, 0xdb, 0x99, 0xa7,
+  0xb2, 0x8c, 0xce, 0xf0, 0x4a, 0x74, 0x36, 0x08,
   0x27, 0x19, 0x5b, 0x65, 0xdf, 0xe1, 0xa3, 0x9d,
-  0xfd, 0xc3, 0x81, 0xbf, 0x05, 0x3b, 0x79, 0x47, 
-  0x68, 0x56, 0x14, 0x2a, 0x90, 0xae, 0xec, 0xd2, 
+  0xfd, 0xc3, 0x81, 0xbf, 0x05, 0x3b, 0x79, 0x47,
+  0x68, 0x56, 0x14, 0x2a, 0x90, 0xae, 0xec, 0xd2,
   0x2c, 0x12, 0x50, 0x6e, 0xd4, 0xea, 0xa8, 0x96,
-  0xb9, 0x87, 0xc5, 0xfb, 0x41, 0x7f, 0x3d, 0x03, 
-  0x63, 0x5d, 0x1f, 0x21, 0x9b, 0xa5, 0xe7, 0xd9, 
+  0xb9, 0x87, 0xc5, 0xfb, 0x41, 0x7f, 0x3d, 0x03,
+  0x63, 0x5d, 0x1f, 0x21, 0x9b, 0xa5, 0xe7, 0xd9,
   0xf6, 0xc8, 0x8a, 0xb4, 0x0e, 0x30, 0x72, 0x4c,
-  0xeb, 0xd5, 0x97, 0xa9, 0x13, 0x2d, 0x6f, 0x51, 
-  0x7e, 0x40, 0x02, 0x3c, 0x86, 0xb8, 0xfa, 0xc4, 
+  0xeb, 0xd5, 0x97, 0xa9, 0x13, 0x2d, 0x6f, 0x51,
+  0x7e, 0x40, 0x02, 0x3c, 0x86, 0xb8, 0xfa, 0xc4,
   0xa4, 0x9a, 0xd8, 0xe6, 0x5c, 0x62, 0x20, 0x1e,
-  0x31, 0x0f, 0x4d, 0x73, 0xc9, 0xf7, 0xb5, 0x8b, 
-  0x75, 0x4b, 0x09, 0x37, 0x8d, 0xb3, 0xf1, 0xcf, 
-  0xe0, 0xde, 0x9c, 0xa2, 0x18, 0x26, 0x64, 0x5a, 
-  0x3a, 0x04, 0x46, 0x78, 0xc2, 0xfc, 0xbe, 0x80, 
+  0x31, 0x0f, 0x4d, 0x73, 0xc9, 0xf7, 0xb5, 0x8b,
+  0x75, 0x4b, 0x09, 0x37, 0x8d, 0xb3, 0xf1, 0xcf,
+  0xe0, 0xde, 0x9c, 0xa2, 0x18, 0x26, 0x64, 0x5a,
+  0x3a, 0x04, 0x46, 0x78, 0xc2, 0xfc, 0xbe, 0x80,
   0xaf, 0x91, 0xd3, 0xed, 0x57, 0x69, 0x2b, 0x15
 };
 

libc/net/lib_addrconfig.c

@@ -1,6 +1,6 @@
 /****************************************************************************
  * libc/net/lib_addrconf.c
- * 
+ *
  *   Author: Max Nekludov <macscomp@gmail.com>
  *   Copyright (c) 2015, Max Nekludov. All rights reserved.
  *

libc/net/lib_shutdown.c

@@ -1,6 +1,6 @@
 /****************************************************************************
  * libc/net/lib_shutdown.c
- * 
+ *
  *   Copyright (c) 2015, Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
@@ -62,7 +62,7 @@
  *
  * Input Paramteers:
  *   sockfd - Specifies the file descriptor of the socket.
- *   how    - Specifies the type of shutdown. The values are as follows: 
+ *   how    - Specifies the type of shutdown. The values are as follows:
  *
  *     SHUT_RD   - Disables further receive operations.
  *     SHUT_WR   - Disables further send operations.

libc/netdb/lib_gethostbyaddr.c

@@ -60,7 +60,7 @@
  *   address types are AF_INET and AF_INET6. The host address argument is a
  *   pointer to a struct of a type depending on the address type, for example
  *   a struct in_addr *  for address type AF_INET.
- * 
+ *
  * Input Parameters:
  *   addr - The address of the host to find.
  *   len - The length of the address

libc/stdlib/lib_strtod.c

@@ -180,7 +180,7 @@ double strtod(FAR const char *str, FAR char **endptr)
           /* FALLTHROUGH */
         case '+':
           p++;
-          /* FALLTHROUGH */          
+          /* FALLTHROUGH */
         default:
           break;
         }

libc/stdlib/lib_strtof.c

@@ -179,7 +179,7 @@ float strtof(FAR const char *str, FAR char **endptr)
         {
         case '-':
           negative = 1;   /* Fall through to increment pos */
-          /* FALLTHROUGH */          
+          /* FALLTHROUGH */
         case '+':
           p++;
           /* FALLTHROUGH */

libc/stdlib/lib_unlockpt.c

@@ -53,15 +53,15 @@
  *
  * Description:
  *   The unlockpt() function unlocks the slave pseudoterminal device
- *   corresponding to the master pseudoterminal referred to by fd. 
+ *   corresponding to the master pseudoterminal referred to by fd.
  *   unlockpt() must be called before opening the slave side of a
- *   pseudoterminal. 
+ *   pseudoterminal.
  *
  * Returned Values:
  *   When successful, unlockpt() returns 0. Otherwise, it returns -1 and
  *   sets errno appropriately.
  *
- *     EBADF - The fd argument is not a file descriptor open for writing. 
+ *     EBADF - The fd argument is not a file descriptor open for writing.
  *     EINVAL - The fd argument is not associated with a master
  *       pseudoterminal
  *

libc/time/lib_localtime.c

@@ -231,7 +231,7 @@
  * after the last transition time stored in the file (with nothing between
  * the newlines if there is no POSIX representation for such instants).
  *
- * If tz_version is '3' or greater, the above is extended as follows.  
+ * If tz_version is '3' or greater, the above is extended as follows.
  * First, the POSIX TZ string's hour offset may range from -167 through
  * 167 as compared to the POSIX-required 0 through 24.  Second, its DST
  * start time may be January 1 at 00:00 and its stop time December 31 at

libc/wctype/lib_wctype.c

@@ -26,7 +26,7 @@
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS   
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  ****************************************************************************/

libc/wqueue/work_usrthread.c

@@ -257,7 +257,7 @@ void work_process(FAR struct usr_wqueue_s *wqueue)
   elapsed = clock_systimer() - stick;
   if (elapsed < wqueue->delay && next > 0)
     {
-      /* How must time would we need to delay to get to the end of the 
+      /* How must time would we need to delay to get to the end of the
        * sampling period?  The amount of time we delay should be the smaller
        * of the time to the end of the sampling period and the time to the
        * next work expiry.