git-svn: cleanup sprintf usage for uppercasing hex

We do not need to call uc() separately for sprintf("%x")
as sprintf("%X") is available.

Signed-off-by: Eric Wong <normalperson@yhbt.net>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
diff --git a/perl/Git/SVN.pm b/perl/Git/SVN.pm
index 59215fa..490e330 100644
--- a/perl/Git/SVN.pm
+++ b/perl/Git/SVN.pm
@@ -490,7 +490,7 @@
 	#
 	# Additionally, % must be escaped because it is used for escaping
 	# and we want our escaped refname to be reversible
-	$refname =~ s{([ \%~\^:\?\*\[\t])}{uc sprintf('%%%02x',ord($1))}eg;
+	$refname =~ s{([ \%~\^:\?\*\[\t])}{sprintf('%%%02X',ord($1))}eg;
 
 	# no slash-separated component can begin with a dot .
 	# /.* becomes /%2E*
@@ -2377,7 +2377,7 @@
 
 sub uri_encode {
 	my ($f) = @_;
-	$f =~ s#([^a-zA-Z0-9\*!\:_\./\-])#uc sprintf("%%%02x",ord($1))#eg;
+	$f =~ s#([^a-zA-Z0-9\*!\:_\./\-])#sprintf("%%%02X",ord($1))#eg;
 	$f
 }