add a blk_wipe function call

Remove any possible filesystems left on the block device when formatting
this makes sure the automounter does not accidentally mount it as another filesystem.
one of the functionalities possibly wiped by accodent?

Signed-off-by: jpsollie <janpieter.sollie@edpnet.be>

tools-util.c

@@ -289,6 +289,8 @@ int open_for_format(const char *dev, bool force)
 		fputs("Proceed anyway?", stdout);
 		if (!ask_yn())
 			exit(EXIT_FAILURE);
+		while (blkid_do_probe(pr) == 0)
+    			blkid_do_wipe(pr, 0);
 	}
 
 	blkid_free_probe(pr);