tevent 0.9.21

add new formula for tevent 0.9.21

Closes #28541.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
Remove unused method
Remove nil split monkeypatch
Remove last monkeypatch
dnsmasq 2.69
dnsmasq: update 2.69 bottle.

Closes #28547.
antlr 4.2.2
Botan 1.10.8
ExifTool 9.58
getmail 4.46.0
iso-codes 3.52
lft 3.36
libtrace 3.0.19
monit 5.8
phoronix-test-suite 5.0.1
scamper 20140404
shared-mime-info 1.3
solr 4.7.2
swi-prolog (devel) 7.1.13
trafficserver 4.2.0

Closes #28549.