CMake Nightly Date Stamp
cmStandardIncludes: Add new cmLiteralNCompare function.

This allows avoiding error-prone hard-coding of literal
string lengths.
Use new cmLiteralNCompare function
Merge topic 'add-cmLiteralNCompare' into next

bedeade Use new cmLiteralNCompare function
a08248b cmStandardIncludes: Add new cmLiteralNCompare function.
b7cecfc CMake Nightly Date Stamp