gitweb: Do not use bareword filehandles

gitweb: Do not use bareword filehandles

The script was using bareword filehandles.  This is considered a bad
practice so they have been changed to indirect filehandles.

Changes touch git_get_project_ctags and mimetype_guess_file;
while at it rename local variable from $mime to $mimetype (in
mimetype_guess_file) to better reflect its value (its contents).

Signed-off-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

gitweb/gitweb.perl

@@ -2065,18 +2065,17 @@ sub git_get_project_ctags {
 	my $ctags = {};
 
 	$git_dir = "$projectroot/$path";
-	unless (opendir D, "$git_dir/ctags") {
-		return $ctags;
-	}
-	foreach (grep { -f $_ } map { "$git_dir/ctags/$_" } readdir(D)) {
-		open CT, $_ or next;
-		my $val = <CT>;
+	opendir my $dh, "$git_dir/ctags"
+		or return $ctags;
+	foreach (grep { -f $_ } map { "$git_dir/ctags/$_" } readdir($dh)) {
+		open my $ct, $_ or next;
+		my $val = <$ct>;
 		chomp $val;
-		close CT;
+		close $ct;
 		my $ctag = $_; $ctag =~ s#.*/##;
 		$ctags->{$ctag} = $val;
 	}
-	closedir D;
+	closedir $dh;
 	$ctags;
 }
 
@@ -2804,18 +2803,18 @@ sub mimetype_guess_file {
 	-r $mimemap or return undef;
 
 	my %mimemap;
-	open(MIME, $mimemap) or return undef;
-	while (<MIME>) {
+	open(my $mh, $mimemap) or return undef;
+	while (<$mh>) {
 		next if m/^#/; # skip comments
-		my ($mime, $exts) = split(/\t+/);
+		my ($mimetype, $exts) = split(/\t+/);
 		if (defined $exts) {
 			my @exts = split(/\s+/, $exts);
 			foreach my $ext (@exts) {
-				$mimemap{$ext} = $mime;
+				$mimemap{$ext} = $mimetype;
 			}
 		}
 	}
-	close(MIME);
+	close($mh);
 
 	$filename =~ /\.([^.]*)$/;
 	return $mimemap{$1};