This allows the template messages to retain the semantic line-breaking
that improves the readability of their source code version control diffs,
while at the same time they can be copy-pasted to issues
without the line breaks (which is slightly problematic
because github includes the line breaks
even when rendering content as rich-text prose).
Also, slightly reword a sentence in the "Past owners" section,
to make it more general and cover more cases.