patch 7.4.1116
Problem:    delete(x, 'rf') does not delete files starting with a dot.
Solution:   Also delete files starting with a dot.
diff --git a/src/vim.h b/src/vim.h
index a8a6ead..a39c6fd 100644
--- a/src/vim.h
+++ b/src/vim.h
@@ -835,6 +835,7 @@
 #define EW_ALLLINKS	0x1000	/* also links not pointing to existing file */
 #define EW_SHELLCMD	0x2000	/* called from expand_shellcmd(), don't check
 				 * if executable is in $PATH */
+#define EW_DODOT	0x4000	/* also files starting with a dot */
 
 /* Flags for find_file_*() functions. */
 #define FINDFILE_FILE	0	/* only files */