From 26edaf3d125e5c0725a2076202945af4c89eb98f Mon Sep 17 00:00:00 2001
From: David Brown <david.brown@linaro.org>
Date: Wed, 10 Mar 2021 05:27:38 -0700
Subject: [PATCH] sim: Change a match with empty arm to if let

This reads a little easier.

Signed-off-by: David Brown <david.brown@linaro.org>
---
 sim/src/tlv.rs | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/sim/src/tlv.rs b/sim/src/tlv.rs
index 32e006fd..b6c3c969 100644
--- a/sim/src/tlv.rs
+++ b/sim/src/tlv.rs
@@ -591,9 +591,8 @@ impl ManifestGen for TlvGen {
     fn generate_enc_key(&mut self) {
         let rng = rand::SystemRandom::new();
         let mut buf = vec![0u8; AES_KEY_LEN];
-        match rng.fill(&mut buf) {
-            Err(_) => panic!("Error generating encrypted key"),
-            Ok(_) => (),
+        if rng.fill(&mut buf).is_err() {
+            panic!("Error generating encrypted key");
         }
         info!("New encryption key: {:02x?}", buf);
         self.enc_key = buf;