Code cleanup:

1) use apr_palloc instead of apr_pcalloc when all the fields of the allocated
structure are set afterwards.

2) avoid useless calls to 'strcasecmp' when we have already found what we are
looking for.

Submitted by: Christophe JAILLET <christophe jaillet wanadoo fr>
PR: 51329


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1135089 13f79535-47bb-0310-9956-ffa450edef68