Fix start.sh to support bash CD_COMPLAINS

Starting from bash 4.4, passing multiple arguments to `cd` will fail.
https://askubuntu.com/questions/905832/ubuntu-17-04-bash-cd-too-many-arguments#905877

scripts/start.sh

@@ -46,7 +46,7 @@ if ! ls sonarqube-*/bin/$OS/sonar.sh &> /dev/null; then
   echo "Unzipping SQ..."
   unzip -qq sonarqube-*.zip
 fi
-cd sonarqube-*
+cd $(find sonarqube-* -type d | head -1)
 
 SQ_HOME=$(pwd)
 cd "$ROOT"