[Issue 12418] Add module for C-strings support

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=12418

berni44 <bugzilla at d-ecke.de> changed:

           What    |Removed                     |Added
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             Status|NEW                         |RESOLVED
                 CC|                            |bugzilla at d-ecke.de
         Resolution|---                         |FIXED

--- Comment #1 from berni44 <bugzilla at d-ecke.de> ---
Seems to be add meanwhile in std.internal.cstring.

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