pidgin/pidgin

Add a few more things to the ChangeLog and set the version number
release-2.x.y v2.14.9
2022-04-28, Gary Kramlich
f729a2939e03
Add a few more things to the ChangeLog and set the version number

Testing Done:
ran `make distcheck`

Reviewed at https://reviews.imfreedom.org/r/1404/
installed_m4=purple.m4
EXTRA_DIST=$(installed_m4)
m4datadir=$(datadir)/aclocal
m4data_DATA=$(installed_m4)