vim-patch:7.4.1820

Problem:    Removing language from help tags too often.
Solution:   Only remove @en when not needed. (Hirohito Higashi)

9ccaae04c6

src/nvim/version.c

@@ -621,7 +621,7 @@ static int included_patches[] = {
   // 1823,
   // 1822 NA
   // 1821,
-  // 1820,
+  1820,
   // 1819 NA
   1818,
   // 1817 NA