Revert "Replace zero-length array decls with []."

This reverts 6c5f9baa3b commit, whose
change breaks gcc-2.95.

Not that I ignore portability to compilers that are properly C99, but
keeping compilation with GCC working is more important, at least for
now.  We would probably end up declaring with "name[1]" and teach the
allocator to subtract one if we really aimed for portability, but that
is left for later rounds.

Signed-off-by: Junio C Hamano <junkio@cox.net>

ls-files.c

@@ -205,7 +205,7 @@ static int excluded(const char *pathname)
 
 struct nond_on_fs {
 	int len;
-	char name[];
+	char name[0];
 };
 
 static struct nond_on_fs **dir;