updated for version 7.4.213
Problem:    It's not possible to open a new buffer without creating a swap
            file.
Solution:   Add the ":noswapfile" modifier. (Christian Brabandt)
diff --git a/src/structs.h b/src/structs.h
index 7a3d692..9bb35ce 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -545,6 +545,7 @@
     int		keepjumps;		/* TRUE when ":keepjumps" was used */
     int		lockmarks;		/* TRUE when ":lockmarks" was used */
     int		keeppatterns;		/* TRUE when ":keeppatterns" was used */
+    int		noswapfile;		/* TRUE when ":noswapfile" was used */
 # ifdef FEAT_AUTOCMD
     char_u	*save_ei;		/* saved value of 'eventignore' */
 # endif