Line breaks are not handled consistently with other

See these two screenshots showing the same reply to a git-ssb-web issue, once in git-ssb-web itself, once in patchwork:

Note that the lines are broken differently.

* with other clients

Daan, just drink your damn coffee before posting immutable messages, will ya? :D

@Daan I confirm that. This PR should fix it: %+lMJAkx...