[packages/grep] - move from GREP_OPTIONS environmental variable to alias due to its obsolescence

[Adam Osuchowski]

Elan Ruusamäe wrote:
> a reference to such "obsolescence" ?

Did you try to run grep 2.21 with GREP_OPTIONS set even once?
Please try it and search sources for message you will see,
before asking such a question.

> this definately is not the same thing as it was before! restore previous 
> behaviour by *not* enforcing such options!

Any evidences, examples? It is very close to GREP_OPTIONS. The alternative
is to patch sources and disable this warning, but it is not good way
to solve this issue. Please stop yelling and suggest better solution.