Have cmd_dump fix errors

Some errors can't be ignored, and fsck and thus dump will only complete
if we're fixing errors.

cmd_debug.c

@@ -94,6 +94,7 @@ int cmd_dump(int argc, char *argv[])
 	opt_set(opts, norecovery,	true);
 	opt_set(opts, degraded,		true);
 	opt_set(opts, errors,		BCH_ON_ERROR_CONTINUE);
+	opt_set(opts, fix_errors,	FSCK_OPT_YES);
 
 	while ((opt = getopt(argc, argv, "o:fh")) != -1)
 		switch (opt) {