* maintaining.texi (Branches): Remove text copied from other sources.

doc/emacs/ChangeLog

+2013-06-07  Xue Fuqiao  <xfq.free@gmail.com>
+
+	* maintaining.texi (Branches): Remove text copied from other
+	sources.
+
 2013-06-05  Alan Mackenzie  <acm@muc.de>
 
 	* search.texi (Isearch Scroll): Rename to "Not Exiting Isearch".

doc/emacs/maintaining.texi

@@ -1267,16 +1267,7 @@ bring them back at a later time).
 @cindex branch (version control)
 
   One use of version control is to support multiple independent lines
-of development, which are called @dfn{branches}.  Branches allow for
-parts of software to be developed in parallel.  Large projects require
-many roles to be filled, including developers, build managers, and
-quality assurance personnel. Further, multiple releases on different
-operating system platforms may have to be maintained.  Branches allow
-contributors to isolate changes without destabilizing the codebase,
-for example, fixes for bugs, new features, and versions
-integration. These changes may be later merged (resynchronized) after
-testing.
-
+of development, which are called @dfn{branches}.
 
   VC's support for branch operations is currently fairly limited.  For
 decentralized version control systems, it provides commands for