HACKING doc git 3rd possiblity

[jidanni]

In HACKING
   If you have made *no* changes:
       git pull

   If you *have* made changes and committed them to "master", do this:
       git fetch
       git rebase origin

OK, but add

   If you *have* made changes but *have not* committed them to
   "master", do this:

As to what "this" should be, well I don't know. All I know is "fetch",
"committed to master"... must be some BDSM game :-)