pidgin/pidgin

Replace newlines in topics with spaces.
release-2.x.y
2021-06-07, Gary Kramlich
d0bc6fbd6c7f
Replace newlines in topics with spaces.

Testing Done:
Set an xmpp conference topic to "this\r\nis\r\na\r\nstupid\r\ntopic" and verified it didn't expand the infopane.

Bugs closed: PIDGIN-16704

Reviewed at https://reviews.imfreedom.org/r/730/
How to build Pidgin for Windows using MinGW
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