Fix patch offset line number in fallocate() patch

Change-Id: I48903948fe75337bf18028d68631d4330a0f8016
varnish (3.0.5plus~wmftest-wm5) unstable; urgency=low

  * Minor fixup to fallocate patchfile
  * Added libvmod-header patches

 -- Brandon Black <bblack@wikimedia.org>  Wed, 19 Mar 2014 12:29:14 -0500

Change-Id: I44c06cd882b15a1ad9b6e840db3ce47e7be011e2