Fixed issue in displaying Pull Request Number

Before
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![before](https://cloud.githubusercontent.com/assets/291148/3049573/ed8e61d6-e161-11e3-9944-8ec3e727b6bc.PNG)

After
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![after](https://cloud.githubusercontent.com/assets/291148/3049572/ed8505be-e161-11e3-8f45-d7b6722de921.PNG)