[PATCH] git-format-patch(1)- add note about creating patch for single commit

[Dan McGee <dpmcgee@gmail.com>]

Signed-off-by: Dan McGee <dpmcgee@gmail.com>
---

I thought this would be helpful because it took me the beter part of an hour
to find a solution instead of specifying C~1..C or other crazy things. The
current documentation just leaves you hanging when what you really want is
just one formatted patch.

If there any suggestions on better wording, feel free to resubmit or whatever-
I just felt like this should be documented somewhere.

 Documentation/git-format-patch.txt |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/Documentation/git-format-patch.txt b/Documentation/git-format-patch.txt
index adb4ea7..8518c33 100644
--- a/Documentation/git-format-patch.txt
+++ b/Documentation/git-format-patch.txt
@@ -46,7 +46,9 @@ applies to that command line and you do not get "everything
 since the beginning of the time".  If you want to format
 everything since project inception to one commit, say "git
 format-patch \--root <commit>" to make it clear that it is the
-latter case.
+latter case.  If you want to format only a single commit, say "git
+format-patch <commit>^!" (which excludes all parent revisions of the
+specified commit).
 
 By default, each output file is numbered sequentially from 1, and uses the
 first line of the commit message (massaged for pathname safety) as
-- 
1.6.0.2