From b4beeee47df98dccfcbd81f9f841824f6191dda5 Mon Sep 17 00:00:00 2001
From: Kei Okada <kei.okada@gmail.com>
Date: Wed, 28 Jan 2015 11:19:33 +0900
Subject: [PATCH] fix for when no value is set

---
 travis.sh | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/travis.sh b/travis.sh
index d8f1debf7..dd8b7a405 100755
--- a/travis.sh
+++ b/travis.sh
@@ -2,7 +2,7 @@
 
 set -x
 
-if [ $ROS_DISTRO == "indigo" -a "$TRAVIS_JOB_ID" ]; then
+if [ "$ROS_DISTRO" == "indigo" -a "$TRAVIS_JOB_ID" ]; then
     sudo apt-get install -qq -y python-jenkins
     ./.travis/travis_jenkins.py
     exit $?
@@ -15,8 +15,8 @@ function error {
     exit 1
 }
 
-[ $BUILDER == rosbuild ] && ( echo "$BUILDER is no longer supported"; exit 1; )
-[ $ROSWS == rosws ] && ( echo "$ROSWS is no longer supported"; exit 1; )
+[ "$BUILDER" == rosbuild ] && ( echo "$BUILDER is no longer supported"; exit 1; )
+[ "$ROSWS" == rosws ] && ( echo "$ROSWS is no longer supported"; exit 1; )
 
 trap error ERR