[Patch, Fortran] [4.4 Regression] .mod file versioning causes error instead of overwritting the file

[Tobias Burnus]

>From the bug report:
| In order to not trigger a compilation cascade, gfortran only overwrites a .mod
| file when its MD5 sum has changed.
|
| Seemingly, the mod-file versioning has the side effect that the MOD file is not
| overwritten if there are no other changes but the version number, which causes
| the version-mismatch error.

The simple solution is to include the version number in the has-changed check.

Build and tested on x86-64, regtesting still running.
OK when it passes?

Tobias

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