CHANGES.md checks in CI are insufficient for the desired level of pedantry

The checks for CHANGES.md in CI do not catch basic formatting pedantry that appears to be desired.

For example, some folks care about the number of leading spaces in a CHANGES.md file.

As none of these requirements are actually documented anywhere, the CHANGES.md checks in ci should catch these things so that they can be fixed not by wasting the limited processing power of meatspace entities on mindless pedantry better done by a computer.