patch 7.4.2010

Problem:    There is a :cbottom command but no :lbottom command.
Solution:   Add :lbottom. (Yegappan Lakshmanan)

src/version.c

@@ -758,6 +758,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    2010,
 /**/
     2009,
 /**/