ZOOKEEPER-722. zkServer.sh uses sh's builtin echo on BSD, behaves incorrectly.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/zookeeper/branches/branch-3.3@933110 13f79535-47bb-0310-9956-ffa450edef68

CHANGES.txt

@@ -10,6 +10,9 @@ BUGFIXES:
   zookeeper-{version}-src.jar to publish sources in the Maven repository
   (paolo via phunt)
 
+  ZOOKEEPER-722. zkServer.sh uses sh's builtin echo on BSD, behaves
+  incorrectly. (Ivan Kelly via phunt)
+
 Release 3.3.0 - 2010-03-24
 
 Non-backward compatible changes:

bin/zkServer.sh

@@ -77,7 +77,7 @@ start)
     echo  "Starting zookeeper ... "
     java  "-Dzookeeper.log.dir=${ZOO_LOG_DIR}" "-Dzookeeper.root.logger=${ZOO_LOG4J_PROP}" \
     -cp "$CLASSPATH" $JVMFLAGS $ZOOMAIN "$ZOOCFG" &
-    echo -n $! > "$ZOOPIDFILE"
+    /bin/echo -n $! > "$ZOOPIDFILE"
     echo STARTED
     ;;
 stop)