filter/rubylang: require ASCII digit for mailcount

Unlikely to matter, but who knows...

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/PublicInbox/Filter/RubyLang.pm b/lib/PublicInbox/Filter/RubyLang.pm
index a43d67a9..d40705b7 100644
--- a/lib/PublicInbox/Filter/RubyLang.pm
+++ b/lib/PublicInbox/Filter/RubyLang.pm
@@ -50,7 +50,7 @@ sub scrub {
                 my @v = $hdr->header_raw('X-Mail-Count');
                 my $n;
                 foreach (@v) {
-                        /\A\s*(\d+)\s*\z/ or next;
+                        /\A\s*([0-9]+)\s*\z/ or next;
                         $n = $1;
                         last;
                 }