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.
diff --git a/src/ex_docmd.c b/src/ex_docmd.c
index 34c9955..1a7fbfa 100644
--- a/src/ex_docmd.c
+++ b/src/ex_docmd.c
@@ -1954,7 +1954,7 @@
 #endif
 			    continue;
 			}
-			if (!checkforcmd(&ea.cmd, "noswapfile", 6))
+			if (!checkforcmd(&ea.cmd, "noswapfile", 3))
 			    break;
 			cmdmod.noswapfile = TRUE;
 			continue;