patch 7.4.2049

Problem:    There is no way to get a list of the error lists.
Solution:   Add ":chistory" and ":lhistory".

src/version.c

@@ -758,6 +758,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    2049,
 /**/
     2048,
 /**/