* support/suexec.c: Add gcc format-string attributes to logging

  functions.  
  (main): Always print uid/gid as unsigned long, and cast to avoid
  warnings (which somewhat defeats the point of the format string
  attrs, but is necessary since the size of gid/uid varies).


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1337344 13f79535-47bb-0310-9956-ffa450edef68