[phobos] substring for std.metastrings

[Igor Lesik]

>>> What does substring do?
>> 
>> "returns" true if string A found in string B

Andrei wrote:
>To me "substring" means "get me the substring from i to j". How about "contains"?


Agree, "contains" is better. (I am afraid "strstr" burned too deeply in my brain structures).

But the main question is still unanswered. Do people think that such a function
belongs to std.metastrings?

Thanks,
Igor