This is better than `revision = master` because:
- It enables labwc commits to be checked out and build without manually
having to find the right wlroots commit to build with
- The labwc master is always buildable without user intervention even
if there are breaking changes in the wlroots master branch
Suggested in issue #289
[wrap-git]
url = https://gitlab.freedesktop.org/wlroots/wlroots.git
-revision = master
+revision = 2e14bed9