do git fetch instead, remove up-to-date msg for repos

deploy/multi/multiple-uav-check.sh

@@ -26,8 +26,8 @@ git_sha_compare()
         echo "${REPO_NAME} ODROID's SHA: ${SHA_ODROID}"
         echo "${REPO_NAME} SERVER's SHA: ${SHA_SERVER}"
         exit -1
-    else
-        echo "${REPO_NAME} is up-to-date."
+    #else
+    #echo "${REPO_NAME} is up-to-date."
     fi
 }
 
@@ -79,7 +79,7 @@ if [ ! -e ${IPS_FILE} ]; then
 fi
 
 pushd ${ACS_ROOT}/acs_ros_ws/src/autonomy-payload >& /dev/null
-   git pull origin
+   git fetch origin
    git checkout master ./ap_master/launch/master.launch
    git checkout master ./ap_tasks/src/task_runner.py
    if [ ! -f ./ap_master/launch/master.launch ]; then