snapcraft.yaml: Fix new-line formatting of description
The description of the snap used YAML's |
which preserves new-lines in multi-line fields. This leads the snap store to render the description as directed, but turns out rather ugly - https://snapcraft.io/inkscape.
Instead, as per http://yaml-multiline.info/ it should collapse the new-lines into simple spaces, which is what the >
does.
Edited by Adam Collard