There is an extra ";"

```
What steps will reproduce the problem?
1. Normal process
2.
3.

What is the expected output? What do you see instead?
It doesn't generate any dot files properly: there is an extra ";"

....
subgraph cluster_acme_platform_converter_0_0_3 {
label="acme-platform-converter-0.0.3"; zipRelease [label="zipRelease\nType:
Zip" ];; combineTests [label="combineTests\nType: Copy" ];;

What version of the product are you using? On what operating system?
Latest "2.2.1"
Windows 7 64 bits

Please provide any additional information below.
Class: ScriptDotFileGenerator.java
Line: 106
builder.append(task.getDotDeclaration()).append(" ");

```

Original issue reported on code.google.com by `victorma...@gmail.com` on 18 Jul 2014 at 2:19