squeeze grep is broken

[Jude DaShiell <jdashiel@shellworld.net>]

I tried a command line like: grep -in "print-installation-architecture" * 
| less <cr> and got me a surprise.  I was in /var/lib/dpkg/info when I did 
this and was curious to know what other scripts might have that deprecated 
command in them.  Grep responded with an undocumented error of argument 
list too long.  So I do man grep to find out what limitations exist for 
argument list and I search for too long in the man page and come up empty. 
I'll try rgrep and see if that works any better next.  Apparently grep may 
be kept around for historical reasons.