diff --git a/ChangeLog b/ChangeLog
index 5719ea51..ec521091 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2007-11-18  Nicolas François  <nicolas.francois@centraliens.net>
+
+	* src/useradd.c: Do not document the behavior compared to old
+	versions.
+
 2007-11-17  Nicolas François  <nicolas.francois@centraliens.net>
 
 	* man/usermod.8.xml: Document the differences between locking an
diff --git a/src/useradd.c b/src/useradd.c
index 4527a573..8d1d0963 100644
--- a/src/useradd.c
+++ b/src/useradd.c
@@ -695,6 +695,11 @@ static void new_spent (struct spwd *spent)
  *
  *	grp_update() takes the secondary group set given in user_groups
  *	and adds the user to each group given by that set.
+ *
+ *	The group files are opened and locked in open_files().
+ *
+ *	close_files() should be called afterwards to commit the changes
+ *	and unlocking the group files.
  */
 static void grp_update (void)
 {
@@ -706,8 +711,6 @@ static void grp_update (void)
 	struct sgrp *nsgrp;
 #endif
 
-	/* Locking and opening of the group files moved to open_files() --gafton */
-
 	/*
 	 * Scan through the entire group file looking for the groups that
 	 * the user is a member of.