Merge branch 'maint-1.5.4' into maint

* maint-1.5.4:
  Documentation/config.txt: Mention branch.<name>.rebase applies to "git pull"
  doc: clarify definition of "update" for git-add -u

Author: gitster

Documentation/config.txt

@@ -415,7 +415,8 @@ branch.<name>.mergeoptions::
 
 branch.<name>.rebase::
 	When true, rebase the branch <name> on top of the fetched branch,
-	instead of merging the default branch from the default remote.
+	instead of merging the default branch from the default remote when
+	"git pull" is run.
 	*NOTE*: this is a possibly dangerous operation; do *not* use
 	it unless you understand the implications (see linkgit:git-rebase[1]
 	for details).

Documentation/git-add.txt

@@ -71,7 +71,9 @@ OPTIONS
 	the specified filepatterns before exiting.
 
 -u::
-	Update only files that git already knows about. This is similar
+	Update only files that git already knows about, staging modified
+	content for commit and marking deleted files for removal. This
+	is similar
 	to what "git commit -a" does in preparation for making a commit,
 	except that the update is limited to paths specified on the
 	command line. If no paths are specified, all tracked files in the