style(nlu): Fix checkstyle complaint

Author: lpatino10

natural-language-understanding/src/main/java/com/ibm/watson/developer_cloud/natural_language_understanding/v1/NaturalLanguageUnderstanding.java

@@ -78,9 +78,9 @@ public NaturalLanguageUnderstanding(String versionDate, String username, String
   }
 
   /**
-   * Instantiates a new `NaturalLanguageUnderstanding` with IAM. Note that if the access token is specified in the iamOptions,
-   * you accept responsibility for managing the access token yourself. You must set a new access token before this one
-   * expires. Failing to do so will result in authentication errors after this token expires.
+   * Instantiates a new `NaturalLanguageUnderstanding` with IAM. Note that if the access token is specified in the
+   * iamOptions, you accept responsibility for managing the access token yourself. You must set a new access token
+   * before this one expires. Failing to do so will result in authentication errors after this token expires.
    *
    * @param versionDate The version date (yyyy-MM-dd) of the REST API to use. Specifying this value will keep your API
    *          calls from failing when the service introduces breaking changes.