Merge r314881 from trunk:

Performance Tune: Do the cheap and fast length check before
we bother doing a char-by-char comparison. 

Reviewed by: jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@314883 13f79535-47bb-0310-9956-ffa450edef68