Fix bash if logic expression with compare strings.

start-replication.sh

@@ -28,7 +28,7 @@ mysql --defaults-extra-file=./.remote.my.cnf -e "$REMOTE_SQL"
 
 mysql --defaults-extra-file=./.my.cnf -e "START SLAVE;"
 
-if [ "$1" -eq "master-to-master" ]; then
+if [[ "$1" = "master-to-master" ]]; then
     LOCAL_SQL=
 
     for i in ${databases[@]}