use print instead of echo

Change-Id: Ibf5015d0b9ee4d5dbec826229e0e72c69d43f26e
diff --git a/src/com/mirantis/mk/Salt.groovy b/src/com/mirantis/mk/Salt.groovy
index 10930a5..38cb243 100644
--- a/src/com/mirantis/mk/Salt.groovy
+++ b/src/com/mirantis/mk/Salt.groovy
@@ -150,7 +150,7 @@
     else {
         result = runSaltCommand(master, 'local', ['expression': tgt, 'type': 'compound'], fun, batch, arg)
     }
-    echo("${result}")
+    print(result)
 }
 
 /**