pidgin/pidgin

Update the ChangeLog and COPYRIGHT for PR #312 and issue #17280.
release-2.x.y
2019-10-09, Gary Kramlich
6378938ad9c5
Update the ChangeLog and COPYRIGHT for PR #312 and issue #17280.

Fixes #17280
installed_m4=purple.m4
EXTRA_DIST=$(installed_m4)
m4datadir=$(datadir)/aclocal
m4data_DATA=$(installed_m4)