HADOOP-7356. Fix bin/hadoop scripts (eyang via omalley)

Minor tweak of fix to check


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.20-security@1133574 13f79535-47bb-0310-9956-ffa450edef68

bin/hadoop-config.sh

@@ -32,7 +32,7 @@ this="$bin/$script"
 
 # the root of the Hadoop installation
 export HADOOP_PREFIX=`dirname "$this"`/..
-if [ -d ${HADOOP_PREFIX}/share/hadoop ]; then
+if [ -d ${HADOOP_PREFIX}/share/hadoop/bin ]; then
   export HADOOP_HOME=${HADOOP_PREFIX}/share/hadoop
 else
   export HADOOP_HOME=${HADOOP_PREFIX}