vim-patch:7.4.2127

Problem:    The short form of ":noswapfile" is ":noswap" instead of ":now".
            (Kent Sibilev)
Solution:   Only require three characters.  Add a test for the short forms.

3bcfca3ab4

src/nvim/ex_docmd.c

@@ -1374,7 +1374,7 @@ static char_u * do_one_cmd(char_u **cmdlinep,
         }
         continue;
       }
-      if (!checkforcmd(&ea.cmd, "noswapfile", 6)) {
+      if (!checkforcmd(&ea.cmd, "noswapfile", 3)) {
         break;
       }
       cmdmod.noswapfile = true;