Fail on PHPUnit error.

build.xml

@@ -40,8 +40,7 @@
     <exec command="phpcs --standard=PEAR --extensions=php --report=checkstyle ${srcdir}/module/VuFind/src &gt; ${builddir}/reports/checkstyle.xml" escape="false" />
 
     <!-- PHPUnit -->
-    <exec dir="${srcdir}/tests" command="VUFIND_LOCAL_DIR=${srcdir}/local phpunit -dzend.enable_gc=0 --log-junit ${builddir}/reports/phpunit.xml --coverage-clover ${builddir}/reports/coverage/clover.xml --coverage-html ${builddir}/reports/coverage/" outputProperty="PHPUNITOUTPUT" />
-    <echo message="${PHPUNITOUTPUT}" />
+    <exec dir="${srcdir}/tests" command="VUFIND_LOCAL_DIR=${srcdir}/local phpunit -dzend.enable_gc=0 --log-junit ${builddir}/reports/phpunit.xml --coverage-clover ${builddir}/reports/coverage/clover.xml --coverage-html ${builddir}/reports/coverage/" passthru="true" checkreturn="true" />
 
   </target>