fix git command in pkgver()
- Fix format of args: use
--abbrev=12
instead of--abbrev 12
The command echo $(git describe --abbrev 12 --tags | sed 's/[^-]*-[^-]*-//;s/[^-]*-/r&/;s/-/+/g;s/_/./')
is invalid and will fail with:
fatal: Not a valid object name 12
We might use the correct argument format --abbrev=12
.