gitweb: Change to use explicitly function call cgi->escapHTML()

Change to use explicitly function call cgi->escapHTML().
This fix the problem on some systems that escapeHTML() is not
functioning, as default CGI is not setting 'escape' parameter.

Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>

gitweb/gitweb.perl

@@ -591,7 +591,7 @@ sub esc_html ($;%) {
 	my %opts = @_;
 
 	$str = to_utf8($str);
-	$str = escapeHTML($str);
+	$str = $cgi->escapeHTML($str);
 	if ($opts{'-nbsp'}) {
 		$str =~ s/ / /g;
 	}
@@ -605,7 +605,7 @@ sub esc_path {
 	my %opts = @_;
 
 	$str = to_utf8($str);
-	$str = escapeHTML($str);
+	$str = $cgi->escapeHTML($str);
 	if ($opts{'-nbsp'}) {
 		$str =~ s/ / /g;
 	}