[Issue 18124] Over-use of `auto` return type in std.regex

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18124

--- Comment #2 from Neia Neutuladh <dhasenan at gmail.com> ---
I wasn't aware that a decision to use the type system was bikeshedding.

Just a tip: emoticons can make an otherwise professional comment seem smarmy or
condescending. If you do not intend to seem smarmy or condescending, you may
wish to avoid them.

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