Description of problem:
apg unconditionally uses 'grep' in its %post scriptlet, but does not have a dependency for it. This can result in scriptlet failures during installation.

Version-Release number of selected component (if applicable):
At least apg-2.3.0b-10.fc15 (f15, rawhide)

How reproducible:
Always

Steps to Reproduce:
1. yum --disablerepo="*" --enablerepo=rawhide --installroot=/home/test -y install apg
  
Actual results:
  Installing : apg-2.3.0b-10.fc15.x86_64                                  12/12 
/var/tmp/rpm-tmp.CTwIig: line 2: grep: command not found

Expected results:
No warnings/errors during install.

Additional info:
"Requires(post): grep" (or /bin/grep) should be added to ensure grep is always present when %post is run.