Move os_canonical_filename call to after the section where

!os_is_path_absolute names are dealt with to prevent bogus munging
of things like proxy:

May(?) still cause problems with regex stuff, but fixes proxy caching
on win32.

PR:
Obtained from:
Submitted by:
Reviewed by:	Ben Laurie


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@79855 13f79535-47bb-0310-9956-ffa450edef68