Convert remaining Latin-1 files to UTF-8.

See upstream's 9f0b86c68bb96d49301bbd6473c8235ca05ca06b. Generated by
using upstream's script in 5a3ce86e21715a683ff0d32421ed5c6d5e84234d and
then manually throwing out the false positives. (We converted a bunch of
stuff already in 91157550061d5d794898fe47b95384a7ba5f7b9d.)

This may require some wrestling with depot_tools to land in Chromium due
to Rietveld's encoding bugs, but hopefully that will avoid future
problems; Rietveld breaks if either old or new file is Latin-1.

Change-Id: I26dcb20c7377f92a0c843ef5d74d440a82ea8ceb
Reviewed-on: https://boringssl-review.googlesource.com/5483
Reviewed-by: Adam Langley <agl@google.com>
diff --git a/crypto/sha/asm/sha256-586.pl b/crypto/sha/asm/sha256-586.pl
index 6462e45..e907714 100644
--- a/crypto/sha/asm/sha256-586.pl
+++ b/crypto/sha/asm/sha256-586.pl
@@ -10,7 +10,7 @@
 # SHA256 block transform for x86. September 2007.
 #
 # Performance improvement over compiler generated code varies from
-# 10% to 40% [see below]. Not very impressive on some µ-archs, but
+# 10% to 40% [see below]. Not very impressive on some µ-archs, but
 # it's 5 times smaller and optimizies amount of writes.
 #
 # May 2012.