highlighting problems for M-x grep

[Dan Nicolaescu]

On a Fedora Core 3 system M-x grep does not eliminate all the terminfo
strings in the *grep* buffer. 

Here is the contents of the *grep* buffer: 

-*- mode: grep; default-directory: "~/" -*-
grep -nH -e test /tmp/test.txt
/tmp/test.txt:1:test

Indeed if I do: 
echo test > /tmp/test.txt
grep -n --color=always test /tmp/test.txt > /tmp/grep.out

C-x i /tmp/grep.out RET

1:test

grep --version
grep (GNU grep) 2.5.1

It's interesting that when doing the same thing on a sparc-solaris
system, using the same version of grep, I get different results:

1:test

no "" there...