Increase the default NumSIG value from 32 to 33 on behalf of

OS/390.  unix_siglist_init() will now blow up via ap_assert()
if NumSIG is too low.  (This is no fun to debug!)


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@85047 13f79535-47bb-0310-9956-ffa450edef68