Use 'UTF-8' rather than 'utf-8' everywhere for backward compatibility

Some ancient platforms (Solaris 7, IRIX 6.5) do not understand 'utf-8', but
all tested implementations understand 'UTF-8'.

Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/pretty.c b/pretty.c
index a0ef356..e5328da 100644
--- a/pretty.c
+++ b/pretty.c
@@ -284,7 +284,7 @@ static char *replace_encoding_header(char *buf, const char *encoding)
 static char *logmsg_reencode(const struct commit *commit,
 			     const char *output_encoding)
 {
-	static const char *utf8 = "utf-8";
+	static const char *utf8 = "UTF-8";
 	const char *use_encoding;
 	char *encoding;
 	char *out;
@@ -881,7 +881,7 @@ char *reencode_commit_message(const struct commit *commit, const char **encoding
 		    ? git_log_output_encoding
 		    : git_commit_encoding);
 	if (!encoding)
-		encoding = "utf-8";
+		encoding = "UTF-8";
 	if (encoding_p)
 		*encoding_p = encoding;
 	return logmsg_reencode(commit, encoding);