install.log output tweaks; reduced path convertion.

Backport r1390511.
Submitted/backported by: fuankg
Reviewed by: druggeri, gsmith


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@1466739 13f79535-47bb-0310-9956-ffa450edef68