Phobos: Arbitrary delimiter variants of (std.string) stripLeft and stripRight

[Chad J]

I'm not exactly sure what the arbitrary delimiter variants of stripLeft 
and stripRight are, but they should be referenced in the documentation 
of those functions.  And if they don't exist, why don't we have them?

I was looking around for trimLeft and trimRight, but no luck.  chomp 
seems to be the arbitrary delimiter variant of trimRight, but then there 
is no chompLeft.  If we had chompLeft I'd expect chompRight to exist and 
chomp to remove both the left and right parts.

There are also no examples/unittests in the documentation on the website 
for stripLeft, stripRight, chomp, or a bunch of others.

Link for your convenience:
http://dlang.org/phobos/std_string.html#stripLeft