From: Eric Wong <normalperson@yhbt.net>
Date: Wed, 4 Jan 2012 09:01:51 +0000 (+0000)
Subject: segfault fix on some bogus requests
X-Git-Url: https://gitweb.ps.run/ps-cgit/commitdiff_plain/21418ec42a9a2de4c2c22eca7a1183b311914eca?hp=21418ec42a9a2de4c2c22eca7a1183b311914eca

segfault fix on some bogus requests

ctx.qry.head can be NULL in some cases due to bad requests
by weird bots.  I managed to reproduce with:

   PATH_INFO=/repo.git/shop.php QUERY_STRING=id=

Signed-off-by: Eric Wong <normalperson@yhbt.net>
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