[Issue 12569] Better error message for std.algorithm.reduce used with two functions and a scalar seed

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=12569

monarchdodra at gmail.com changed:

           What    |Removed                     |Added
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                 CC|                            |monarchdodra at gmail.com

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