applier: Fix git rev-parse command
applier: Fix git rev-parse command

Signed-off-by: Fam Zheng <df9fd617995bad07eac70e27aa3fe5069270e3bd@redhat.com>

famz/patchew,famz/patchew,famz/patchew,patchew-project/patchew,patchew-project/patchew,patchew-project/patchew,famz/patchew,patchew-project/patchew