remove explicit "0.0.0.0" specification on -p option because it turns out

the "tcp6" listener that results accepts ipv4 after all

NOTES

@@ -72,7 +72,6 @@ it uses select(), I'm not sure how I would honor Thread.interrupt() or
 whatever.  It's not guaranteed to interrupt select(), and I'm not keen on
 adding an arbitrary timeout/polling feature to it.
 
-XXX - try without 0.0.0.0
 XXX - implement start on boot
 
 XXX - scp

jni/interface.c

@@ -149,7 +149,7 @@ Java_org_galexander_sshd_SimpleSSHDService_start_1sshd(JNIEnv *env_,
 		if (port) {
 			argv[argc++] = "-p";
 			argv[argc] = malloc(20);
-			sprintf(argv[argc], "0.0.0.0:%d", (int)port);
+			sprintf(argv[argc], "%d", (int)port);
 			argc++;
 		}
 		argc += process_extra(extra, &argv[argc],