Merge r239422 and r239423 from trunk; these are (long) casts to fix 64-bit

build warnings by asteinmetz. Tested on IA64, x64 and x86. 

Originally by: asteinmetz
Reviewed by: colm


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@293305 13f79535-47bb-0310-9956-ffa450edef68