Add SeparatorWrap check

This ensures that chained method calls have the dot operator at the
beginning of the line.

src/main/resources/checkstyle.xml

@@ -99,6 +99,10 @@
       <property name="suppressLoadErrors" value="true"/>
     </module>
     <module name="RightCurly"/>
+    <module name="SeparatorWrap">
+      <property name="tokens" value="DOT"/>
+      <property name="option" value="nl"/>
+    </module>
     <module name="SimplifyBooleanExpression"/>
     <module name="SimplifyBooleanReturn"/>
     <module name="StaticVariableName"/>

src/test/java/org/gaul/s3proxy/S3AwsSdkTest.java

@@ -77,8 +77,8 @@ public final class S3AwsSdkTest {
                 S3ProxyConstants.PROPERTY_CREDENTIAL);
         // The AWS client fails if certificate verification fails
         s3Endpoint = new URI(s3ProxyProperties.getProperty(
-                S3ProxyConstants.PROPERTY_ENDPOINT).
-                replaceAll("https", "http"));
+                S3ProxyConstants.PROPERTY_ENDPOINT).replaceAll(
+                        "https", "http"));
         String keyStorePath = s3ProxyProperties.getProperty(
                 S3ProxyConstants.PROPERTY_KEYSTORE_PATH);
         String keyStorePassword = s3ProxyProperties.getProperty(