Fix quoting issue and path to ves-agent build.sh

Change-Id: Ifdac8207ba1c05722e346e9e55059b19fa115bd5
diff --git a/jjb/verify/ves-agent.yaml b/jjb/verify/ves-agent.yaml
index a9c4abb..fca6a70 100644
--- a/jjb/verify/ves-agent.yaml
+++ b/jjb/verify/ves-agent.yaml
@@ -15,5 +15,5 @@
       - 'verify-licensed'
       - 'verify-sonarqube':
           dependency-jobs: 'verify_ves-agent_tag-collision'
-          sonar-prep-commands: 'build.sh'
+          sonar-prep-commands: './build.sh'
           sonar-java-binaries: 'target'