refactor the representation of HTTP method and whether to send

a body, fixing these insignificant bugs:

* method name displayed in a debug message was wrong in some
  cases
* specifying conflicting HTTP methods on the command-line
  displayed an invalid message in some cases


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@819298 13f79535-47bb-0310-9956-ffa450edef68