Merge branch 'ss/describe-dirty-in-the-right-directory'

"git --work-tree=$there --git-dir=$here describe --dirty" did not work correctly as it did not pay attention to the location of the worktree specified by the user by mistake, which has been corrected. * ss/describe-dirty-in-the-right-directory: t6120: test for describe with a bare repository describe: setup working tree for --dirty