* tools/dev/unix-build/Makefile.svn: Update my build script, and hence the
   bb-openbsd bot, to HTTPD 2.2.26. Should fix test failures on bb-openbsd.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1543068 13f79535-47bb-0310-9956-ffa450edef68