viewdiff: diff_header: shorten function, slightly

It makes for easier reading with gigantic fonts.

diff --git a/lib/PublicInbox/ViewDiff.pm b/lib/PublicInbox/ViewDiff.pm
index b91156692976849ac26474c4c35c2acde79c4bd6..fba3d76c7b0cc10473261380c081301f93b5b119 100644 (file)
--- a/lib/PublicInbox/ViewDiff.pm
+++ b/lib/PublicInbox/ViewDiff.pm
@@ -124,12 +124,8 @@ sub diff_header ($$$) {
                $dctx->{Q} = '?b='.uri_escape_path($pb);
        } else {
                my @q;
-               if ($pb ne '/dev/null') {
-                       push @q, 'b='.uri_escape_path($pb);
-               }
-               if ($pa ne '/dev/null') {
-                       push @q, 'a='.uri_escape_path($pa);
-               }
+               push @q, 'b='.uri_escape_path($pb) if $pb ne '/dev/null';
+               push @q, 'a='.uri_escape_path($pa) if $pa ne '/dev/null';
                $dctx->{Q} = '?'.join('&', @q);
        }