Fix various compile time warnings in hashbang_emul code which

prevent successful compilation on OS/390

Submitted by:	Ovies Brabson <oviesb@us.ibm.com>
Reviewed by:	Martin Kraemer


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@84235 13f79535-47bb-0310-9956-ffa450edef68