From 4076383c4989db17988bc77c9ec5f414f2c77090 Mon Sep 17 00:00:00 2001
From: Lorenz Meier <lm@inf.ethz.ch>
Date: Tue, 3 Nov 2015 22:53:03 +0100
Subject: [PATCH] Commander: Fix PX4_INFO call

---
 src/modules/commander/commander.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/modules/commander/commander.cpp b/src/modules/commander/commander.cpp
index 1a70d0f6dd..67ce676df5 100644
--- a/src/modules/commander/commander.cpp
+++ b/src/modules/commander/commander.cpp
@@ -403,11 +403,11 @@ int commander_main(int argc, char *argv[])
 
 void usage(const char *reason)
 {
-	if (reason) {
-		PX4_INFO("%s\n", reason);
+	if (reason && *reason > 0) {
+		PX4_INFO("%s", reason);
 	}
 
-	PX4_INFO("usage: commander {start|stop|status|calibrate|check|arm|disarm}\n\n");
+	PX4_INFO("usage: commander {start|stop|status|calibrate|check|arm|disarm}\n");
 }
 
 void print_status()