fix error caused by release

Author: xinyuan-zhang

common/ant/common.xml

@@ -108,7 +108,7 @@
     <property name="spec.version" value="2.3"/>
     <property name="spec_version" value="2_3"/>
     <property name="spec.snapshot.version" value="2.3-mr1-SNAPSHOT"/>
-    <property name="patch.version" value=“2”/>
+    <property name="patch.version" value="2"/>
     <property name="impl.name" value="Mojarra"/>
     <property name="build.number" value="${DSTAMP}-${TSTAMP}"/>
     <property name="build.type" value="-SNAPSHOT"/>