patch 7.4.1833

Problem:    Cannot use an Ex command for 'keywordprg'.
Solution:   Accept an Ex command. (Nelo-Thara Wallus)

src/version.c

@@ -753,6 +753,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1833,
 /**/
     1832,
 /**/