In the current version of initscripts, in order to get the number of processors in the system and to print that on the login, the rc.local makes something like grep -cl <some regular expression> <somefile> this should be fixed as egrep -c <the same reg. ex. > <the same file> The egrep is used to count the number of processor, with the -c option. I can be more precise if necessary.
This is fixed in the various errata initscripts.