build/rpm/pcp.spec.in: CentOS 5 does not set the rhel rpm macro
build/rpm/pcp.spec.in: CentOS 5 does not set the rhel rpm macro

Need different logic in the conditional for the BuildRequires:
rule for pcp-selinux on CentOS 5 (vm04 and vm25).

adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp