change message format within github markdown

When I tried to use 'Published Jenkins URL' to see link to results in GitHub comments I see next, GitHub can't display HTML markdown:
Before my changes it looks like this:
![screenshot from 2014-10-13 18 52 02](https://cloud.githubusercontent.com/assets/1260333/4616187/0971b79e-52f1-11e4-96b1-0420f4d8574d.png)
after my changes, that I commited in this PR it looks like -
![screenshot from 2014-10-13 18 51 20](https://cloud.githubusercontent.com/assets/1260333/4616198/1aa35d9c-52f1-11e4-9f3d-2ecb8a21f322.png)
it is clickable.

The reason that GitHub requires markdown for links in format 
![screenshot from 2014-10-13 19 56 00](https://cloud.githubusercontent.com/assets/1260333/4616265/9a0000d6-52f1-11e4-9877-309f56172cad.png)

Tests are passed ok.
```
Tests run: 28, Failures: 0, Errors: 0, Skipped: 0

[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESSFUL

```
Removing the newline from above doesn't stop this newline character though.