debug messages are off by default; use -d to enable.
lrwxrwxrwx 14 git-subtree -> git-subtree.sh
-rwxr-xr-x 8906 git-subtree.sh
-rw-r--r-- 23 shellopts.sh
-rwxr-xr-x 4326 test.sh
-rw-r--r-- 247 todo