As the full version can be used as a label value, the full SHA from the
reference takes up too much space from the 63 characters available in
total.
To mitigate against this, we now take a "short" version of the first 12
characters, which was still unique for the Linux kernel in 2019 with
875.000 commits:
http://git-scm.com/book/en/v2/Git-Tools-Revision-Selection#Short-SHA-1
This should be sufficient to safely detect all changes within the
context of operations.
Signed-off-by: Hidde Beydals <hello@hidde.co>
5ddeb0934f