[Issue 17634] variadic overload of std.algorithm.searching.countUntil should return which needle was found

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=17634

Basile-z <b2.temp at gmx.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|b2.temp at gmx.com             |

--