[PATCH] bzrlib/builtins.py::cmd_branch help docstring improvement

[Jari Aalto]

Made it little more verbose, suggested by Aaron Bentley.

Jari

--- bzrlib/builtins.py 
+++ bzrlib/builtins.py 
@@ -348,10 +348,11 @@
     """Create a new copy of a branch.
 
     If the TO_LOCATION is omitted, the last component of the FROM_LOCATION will
-    be used.  In other words, "branch ../foo/bar" will attempt to create ./bar.
-
-    To retrieve the branch as of a particular revision, supply the --revision
-    parameter, as in "branch foo/bar -r 5".
+    be used. In other words, "branch ../foo/bar" will attempt to create ./bar.
+
+    To retrieve the branch contains all revisions up to and including
+    the revision, supply the --revision parameter, as in "branch
+    foo/bar -r 5".
     """
     takes_args = ['from_location', 'to_location?']
     takes_options = ['revision']