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User-Agent: Mozilla/4.72 [en] (X11; U; Linux 2.2.18 i686)

Description of problem:
the krb5-libs rpm uses grep in its postinstall script, but has
no dependancy on grep, which provides grep.
When installing a custom system with anaconda, chances are that krb5-libs
gets installed _before_ grep does, so the postinstall script will fail.
In this case, /usr/kerberos/lib is not added to /etc/ld.so.conf

How reproducible:
Always

Steps to Reproduce:
1. install a custom system with anaconda
2. see output from /tmp/install.log below
3.
	

Actual Results:Installing krb5-libs.
/var/tmp/rpm-tmp.15040: grep: command not found

Expected Results:  anaconda should have installed grep before krb5-libs

Additional info:

Chances are that in other systems grep does get installed before krb5-libs
due to some other requirement.