fix missing )

Change-Id: I269ed6affb39bd630ba03be4ee557d7c1894c411
diff --git a/test-service.groovy b/test-service.groovy
index acfaca7..fb6c274 100644
--- a/test-service.groovy
+++ b/test-service.groovy
@@ -85,7 +85,7 @@
                 test.runTempestTests(saltMaster, TEST_TEMPEST_IMAGE, TEST_TEMPEST_TARGET, TEST_TEMPEST_PATTERN)
             }
 
-            writeFile(file: 'report.xml', text: salt.getFileContent(saltMaster, TEST_TEMPEST_TARGET, '/root/report.xml')
+            writeFile(file: 'report.xml', text: salt.getFileContent(saltMaster, TEST_TEMPEST_TARGET, '/root/report.xml'))
             junit(keepLongStdio: true, testResults: 'report.xml', healthScaleFactor: TEST_JUNIT_RATIO)
         }