pidgin/pidgin

Fix a possible leak.

2021-03-04, Elliott Sales de Andrade
afc646d2e7cb
Fix a possible leak.

Been failing in scanbuild for a while.

Testing Done:
Compile only. Ran scanbuild again and leak is not reported.

Reviewed at https://reviews.imfreedom.org/r/556/
pidgin3_xml = configure_file(
input : 'pidgin3.xml.in',
output : 'pidgin3.xml',
configuration : version_conf,
install : true,
install_dir : get_option('datadir') / 'glade/catalogs')