Fix a problem with the definition of union semun which broke

System V semaphores on systems where sizeof(int) != sizeof(long).

PR:               12072
Submitted by:	  <winterling@de.ibm.com>
Reviewed by:	  Jeff Trawick, Justin Erenkrantz


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@96927 13f79535-47bb-0310-9956-ffa450edef68