Apply suggestion from @ncooke3

Author: ncooke3

scripts/setup_quickstart_framework.sh

@@ -16,7 +16,7 @@ set -ex
 
 REPO=`pwd`
 if [ ! -d "quickstart-ios" ]; then
-  git clone https://github.com/firebase/quickstart-ios.git  
+  git clone https://github.com/firebase/quickstart-ios.git
 fi
 QS_SCRIPTS="${REPO}"/quickstart-ios/scripts
 cd quickstart-ios/"${SAMPLE}"