HDDS-110. Checkstyle is not working in the HDDS precommit hook.

Contributed by Elek, Marton.

pom.xml

@@ -322,7 +322,7 @@ xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xs
             <dependency>
               <groupId>org.apache.hadoop</groupId>
               <artifactId>hadoop-build-tools</artifactId>
-              <version>${project.version}</version>
+              <version>${hadoop.version}</version>
             </dependency>
             <dependency>
               <groupId>com.puppycrawl.tools</groupId>