pidgin/pidgin

Make PurpleCredentialManager a final type

2021-10-20, Gary Kramlich
afe8c89a8e90
Make PurpleCredentialManager a final type

Testing Done:
Verified that the secret service provider is still working.

Reviewed at https://reviews.imfreedom.org/r/1081/
nullclient = executable('nullclient', 'nullclient.c', 'defines.h',
c_args : ['-DSTANDALONE'],
dependencies : [libpurple_dep, glib])