mkfs.bfs: include-what-you-use header check

The limits.h is added for CHAR_MAX

Signed-off-by: Sami Kerola <kerolasa@iki.fi>

disk-utils/mkfs.bfs.c

@@ -7,8 +7,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
-#include <stdarg.h>
-#include <sys/types.h>
+#include <limits.h>
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <errno.h>