Keep 'unzip' from prompting when overwriting (e.g., when archive

contains same file twice).  Also make it less verbose.


git-svn-id: https://svn.apache.org/repos/asf/lucene/hadoop/trunk@376449 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/hadoop/mapred/TaskRunner.java

@@ -76,7 +76,7 @@ abstract class TaskRunner extends Thread {
       JobConf job = new JobConf(t.getJobFile());
       String jar = job.getJar();
       if (jar != null) {                      // if jar exists, it into workDir
-        runChild(new String[] { "unzip", jar}, workDir);
+        runChild(new String[] { "unzip", "-o", "-q", jar}, workDir);
         File[] libs = new File(workDir, "lib").listFiles();
         if (libs != null) {
           for (int i = 0; i < libs.length; i++) {