fix various mispellings and style problems

PR:            28732
Submitted by:  Ville Skytt� <ville.skytta iki.fi>
Reviewed by:   Jeff Trawick


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@103615 13f79535-47bb-0310-9956-ffa450edef68