minor: the original patch for HADOOP-5224 did not disable

append tests in libhdfs. This fixes it. (Raghu Angadi)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/core/branches/branch-0.19@745977 13f79535-47bb-0310-9956-ffa450edef68

src/c++/libhdfs/hdfs_test.c

@@ -317,7 +317,7 @@ int main(int argc, char **argv) {
         totalResult += (result ? 0 : 1);
     }
 
-    {
+    if (0) { // disable append tests in 0.19.x
       // TEST APPENDS
       const char *writePath = "/tmp/appends";