$ ./fix-build-issues.sh
Entering 'lzma-sys/xz'
Entering 'lzma-sys/xz'
merge: origin - not something we can merge
Stopping at 'lzma-sys/xz'; script returned non-zero status.
fatal: Needed a single revision
Unable to find current revision in submodule path 'lzma-sys/xz'