pidgin/pidgin

Make PurpleHistoryManager a final type

2021-10-20, Gary Kramlich
e19c9f9c79fc
Make PurpleHistoryManager a final type

Testing Done:
Ran the unit tests and sent a message and made sure it ended up in the database.

Reviewed at https://reviews.imfreedom.org/r/1083/
syntax: glob
.*.swp
.DS_Store
.flatpak-builder
*.pyc
*~
\#*\#
syntax: regexp
^build(.+)?\/
win32-install-dir(\.release)?
po\/pidgin\.pot$
^subprojects\/.+\/