optimization/cleanup.

The generic flagparser (read: lexer) for RewriteRules and RewriteConds
does the same except for one function call.
Collapse these to functions to one and make the result more
readable.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@100772 13f79535-47bb-0310-9956-ffa450edef68