disable_test: Use \s instead of ' ' as tabs are used for indentation in
t5324-split-commit-graph.sh. It's also necessary to insert : (no op) in
front of # to prevent Bash syntax errors due to empty loops.
Two newly added tests fail due the usage of shared permissions (outside
of the build sandbox they succeed, actually even with breakpointHook
(cntr attach + cntr exec bash)):
```
t5324-split-commit-graph.sh (Wstat: 256 Tests: 29
Failed: 2)
Failed tests: 28-29
Non-zero exit status: 1
```
I'm also adding myself as maintainer since there currently doesn't seem
to be a fixed one for regular updates.
Announcement:
https://lkml.kernel.org/lkml/xmqqzh9mu4my.fsf@gitster.c.googlers.com/
98c44f5657