Add some tests to check that loadproperties and load-environment work as expected

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@270528 13f79535-47bb-0310-9956-ffa450edef68

proposal/myrmidon/src/make/sample.ant

@@ -138,4 +138,14 @@ Legal:
 
   </target>
 
+  <target name="loadenvironment-test">
+    <load-environment prefix="env"/>
+    <log message="env.TMP=${env.TMP}"/>
+  </target>
+
+  <target name="loadproperties-test">
+    <load-properties prefix="myPrefix" file="template-simple.properties"/>
+    <log message="myPrefix.foo=${myPrefix.foo}"/>
+  </target>
+
 </project>