http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52228
--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-02-13 15:40:36 UTC --- (In reply to comment #4) > (In reply to comment #2) > > My regexp explicitly forbirds / right before PR.... but I cannot remember > > why > > maybe so it doesn't catch external links like http://sourceware.org/0 ? yeah, that'll be it :) that was entered as sourceware.org / P R 1 2 3 (without spaces) and got mangled