[PATCH] checkout: show dirty state upon switching branches.

This shows your working file state when you switch branches.  As
a side effect, "git checkout" without any branch name (i.e. stay
on the current branch) becomes a more concise shorthand for the
"git status" command.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

git-checkout.sh

@@ -164,6 +164,9 @@ else
 	esac
 	exit 0
     )
+    saved_err=$?
+    git diff-files --name-status
+    (exit $saved_err)
 fi
 
 #