Fixed weird artifactory build info appending issue

Change-Id: Ie84882bb29452005119d3df72756fc5268fc881a
diff --git a/src/com/mirantis/mcp/MCPArtifactory.groovy b/src/com/mirantis/mcp/MCPArtifactory.groovy
index c33fa26..025ac7d 100644
--- a/src/com/mirantis/mcp/MCPArtifactory.groovy
+++ b/src/com/mirantis/mcp/MCPArtifactory.groovy
@@ -224,7 +224,7 @@
  */
 def uploadBinariesToArtifactory (ArtifactoryServer server, BuildInfo buildInfo, String uploadSpec,
                                  Boolean publishInfo = false) {
-    buildInfo.append(server.upload(uploadSpec))
+    server.upload(uploadSpec, buildInfo)
 
     if ( publishInfo ) {
         buildInfo.env.capture = true