Merge pull request apache#42 from Stzx/master

[NET-671] Fix the Checkstyle DTD URL

Author: sebbASF

checkstyle-suppressions.xml

@@ -17,8 +17,8 @@ limitations under the License.
 -->
 
 <!DOCTYPE suppressions PUBLIC
-    "-//Puppy Crawl//DTD Suppressions 1.1//EN"
-    "http://www.puppycrawl.com/dtds/suppressions_1_1.dtd">
+    "-//Checkstyle//DTD SuppressionFilter Configuration 1.1//EN"
+    "https://checkstyle.org/dtds/suppressions_1_1.dtd">
 
 <suppressions>
     <!-- On Windows, it appears that Checkstyle matches files using \ delims -->

checkstyle.xml

@@ -17,8 +17,8 @@ limitations under the License.
 -->
 
 <!DOCTYPE module PUBLIC
-    "-//Puppy Crawl//DTD Check Configuration 1.1//EN"
-    "http://www.puppycrawl.com/dtds/configuration_1_1.dtd">
+    "-//Checkstyle//DTD Checkstyle Configuration 1.1//EN"
+    "https://checkstyle.org/dtds/configuration_1_1.dtd">
 
 <!-- Commons Net customization of default Checkstyle behavior -->
 <module name="Checker">