general-tools/git-commands broken

Compilation fails with

```
it: /home/uliska/software/lilypond/releases/2.19.60/usr/lib/libz.so.1: no version
information available (required by git)
Result:(3aba7fd )
fatal error: make-column-markup: Invalid argument in position 1.  
Expect: markup list, found: "3aba7fd".
Exited with return code 1.
```