[FS#25] Bug change emails should be less verbose

[LEDE Bugs]

The following task has a new comment added:

FS#25 - Bug change emails should be less verbose
User who did this - Jonas Gorski (jogo)

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Yay, thank you. Gmail now successfully merges different actions for a ticket.
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=25#comment130