pidgin/pidgin

protocol.c was renamed to purpleprotocol.c awhile ago but the docs were not updated for it

2021-11-02, Gary Kramlich
91c9fc1f1db3
protocol.c was renamed to purpleprotocol.c awhile ago but the docs were not updated for it

Testing Done:
ran `ninja libpurple-doc` successfully.

Reviewed at https://reviews.imfreedom.org/r/1122/
syntax: glob
.*.swp
.DS_Store
.flatpak-builder
*.pyc
*~
\#*\#
syntax: regexp
^build(.+)?\/
win32-install-dir(\.release)?
po\/pidgin\.pot$
^subprojects\/.+\/