Make sun-color 256 color by default, and just drop the sun-256color.

terminfo/s/sun/term.go

@@ -70,50 +70,6 @@ func init() {
 		Name:         "sun-color",
 		Columns:      80,
 		Lines:        34,
-		Colors:       8,
-		Bell:         "\a",
-		Clear:        "\f",
-		AttrOff:      "\x1b[m",
-		Bold:         "\x1b[1m",
-		Reverse:      "\x1b[7m",
-		SetFg:        "\x1b[38;5;%p1%dm",
-		SetBg:        "\x1b[48;5;%p1%dm",
-		ResetFgBg:    "\x1b[0m",
-		PadChar:      "\x00",
-		SetCursor:    "\x1b[%i%p1%d;%p2%dH",
-		CursorBack1:  "\b",
-		CursorUp1:    "\x1b[A",
-		KeyUp:        "\x1b[A",
-		KeyDown:      "\x1b[B",
-		KeyRight:     "\x1b[C",
-		KeyLeft:      "\x1b[D",
-		KeyInsert:    "\x1b[247z",
-		KeyDelete:    "\u007f",
-		KeyBackspace: "\b",
-		KeyHome:      "\x1b[214z",
-		KeyEnd:       "\x1b[220z",
-		KeyPgUp:      "\x1b[216z",
-		KeyPgDn:      "\x1b[222z",
-		KeyF1:        "\x1b[224z",
-		KeyF2:        "\x1b[225z",
-		KeyF3:        "\x1b[226z",
-		KeyF4:        "\x1b[227z",
-		KeyF5:        "\x1b[228z",
-		KeyF6:        "\x1b[229z",
-		KeyF7:        "\x1b[230z",
-		KeyF8:        "\x1b[231z",
-		KeyF9:        "\x1b[232z",
-		KeyF10:       "\x1b[233z",
-		KeyF11:       "\x1b[234z",
-		KeyF12:       "\x1b[235z",
-		AutoMargin:   true,
-		InsertChar:   "\x1b[@",
-	})
-
-	terminfo.AddTerminfo(&terminfo.Terminfo{
-		Name:         "sun-256color",
-		Columns:      80,
-		Lines:        34,
 		Colors:       256,
 		Bell:         "\a",
 		Clear:        "\f",