vim-patch:7.4.1971 (#5262)

Problem:    It is not easy to see unrecognized error lines below the current
            error position.
Solution:   Add ":clist +count".

e8fea0728a

src/nvim/version.c

@@ -305,7 +305,7 @@ static int included_patches[] = {
   // 1974 NA
   1973,
   // 1972,
-  // 1971,
+  1971,
   // 1970,
   // 1969 NA
   // 1968,