pidgin/pidgin

Add missing i18n headers.

2020-11-16, Elliott Sales de Andrade
defc6aec1761
Add missing i18n headers.

These are needed via `PIDGIN_ALERT_TITLE` -> `PIDGIN_NAME` -> `_("Pidgin")`

Testing Done:
Compile only.

Reviewed at https://reviews.imfreedom.org/r/223/
REVIEWBOARD_URL = "https://reviews.imfreedom.org/"
REPOSITORY = "pidgin/pidgin"
REPOSITORY_TYPE = "mercurial"
BRANCH = "default"
LAND_DEST_BRANCH = "default"
LAND_PUSH = False