Give Transsmart error message in the exception

Author: casperbakker

src/Carriers/Transsmart.php

@@ -82,10 +82,12 @@ private function get($endpoint)
             $this->logger->setResponseData((string) $contents);
         } catch (RequestException $e) {
             if ($e->hasResponse()) {
+                $error = (string) $e->getResponse()->getBody()->getContents();
+                
                 $this->logger->setResponseCode($e->getResponse()->getStatusCode());
-                $this->logger->setResponseData((string) $e->getResponse()->getBody()->getContents());
+                $this->logger->setResponseData($error);
 
-                throw new TranssmartException('Error ' . $e->getResponse()->getStatusCode() .': ' . $e->getResponse()->getBody()->getContents());
+                throw new TranssmartException($error);
             } else {
                 $this->logger->setResponseCode(null);
                 $this->logger->setResponseData('Transsmart error (no message provided)');
@@ -269,4 +271,4 @@ public function getLogger()
         return $this->logger;
     }
 
-}
+}