MAGETWO-65667: Error Importing Customer multiselect attribute

Author: Eric Bohanon

app/code/Magento/ImportExport/Model/Import/AbstractEntity.php

@@ -75,7 +75,8 @@ abstract class AbstractEntity
         self::ERROR_CODE_COLUMNS_NUMBER => "Number of columns does not correspond to the number of rows in the header",
         self::ERROR_EXCEEDED_MAX_LENGTH => 'Attribute %s exceeded max length',
         self::ERROR_INVALID_ATTRIBUTE_TYPE => 'Value for \'%s\' attribute contains incorrect value',
-        self::ERROR_INVALID_ATTRIBUTE_OPTION => "Value for %s attribute contains incorrect value, see acceptable values on settings specified for Admin",
+        self::ERROR_INVALID_ATTRIBUTE_OPTION => "Value for %s attribute contains incorrect value"
+            . ", see acceptable values on settings specified for Admin",
     ];
 
     /**#@-*/