updated for version 7.3.255
Problem:    When editing a file such as "File[2010-08-15].vim" an E16 error is
            given. (Manuel Stol)
Solution:   Don't give an error for failing to compile the regexp.
diff --git a/src/ex_docmd.c b/src/ex_docmd.c
index 602bbfa..3e80b32 100644
--- a/src/ex_docmd.c
+++ b/src/ex_docmd.c
@@ -7069,7 +7069,7 @@
 	old_arg_count = GARGCOUNT;
 	if (expand_wildcards(old_arg_count, old_arg_files,
 		    &new_arg_file_count, &new_arg_files,
-		    EW_FILE|EW_NOTFOUND|EW_ADDSLASH) == OK
+		    EW_FILE|EW_NOTFOUND|EW_ADDSLASH|EW_NOERROR) == OK
 		&& new_arg_file_count > 0)
 	{
 	    alist_set(&global_alist, new_arg_file_count, new_arg_files,