pidgin/pidgin

Fix leaked errors

13 months ago, Elliott Sales de Andrade
3fc2d2b7b7a8
Fix leaked errors

And also simplify some cases with `g_clear_error`.

Testing Done:
Compiled and ran tests in valgrind, though it never noticed these anyway.

Reviewed at https://reviews.imfreedom.org/r/2384/
i18n = import('i18n')
# use the glib preset which is defined at
# https://github.com/mesonbuild/meson/blob/master/mesonbuild/modules/i18n.py#L93
# at the time of this comment.
i18n.gettext('pidgin', preset : 'glib')