2 files changed, 8 insertions, 1 deletions

diff --git a/doc/emacs/ChangeLog b/doc/emacs/ChangeLog
index 14e9be8ba84..6845e39eae5 100644
--- a/doc/emacs/ChangeLog
+++ b/doc/emacs/ChangeLog
@@ -1,3 +1,8 @@
+2013-05-30  Xue Fuqiao  <xfq.free@gmail.com>
+
+        * maintaining.texi (Types of Log File): Supplement some
+        information of change log files.
+
 2013-05-15  Juri Linkov  <juri@jurta.org>
 
         * search.texi (Repeat Isearch): Mention key `RET' to finish
diff --git a/doc/emacs/maintaining.texi b/doc/emacs/maintaining.texi
index c8d9e9f2087..33e398ebf75 100644
--- a/doc/emacs/maintaining.texi
+++ b/doc/emacs/maintaining.texi
@@ -342,7 +342,9 @@ before version control systems.
 modification log for the entire system, which makes change log files
 somewhat redundant.  One advantage that they retain is that it is
 sometimes useful to be able to view the transaction history of a
-single directory separately from those of other directories.
+single directory separately from those of other directories.  Another
+advantage is that commit logs can't be fixed in many version control
+systems.
 
   A project maintained with version control can use just the version
 control log, or it can use both kinds of logs.  It can handle some