Use hadoop-lzo 0.4.20.

Author: viirya

hadoop-common-project/hadoop-common/pom.xml

@@ -383,7 +383,7 @@
     <dependency>
       <groupId>com.hadoop.gplcompression</groupId>
       <artifactId>hadoop-lzo</artifactId>
-      <version>0.4.21-SNAPSHOT</version>
+      <version>0.4.20</version>
       <scope>test</scope>
     </dependency>
   </dependencies>