maint: fix typos in old ChangeLog files

maint: fix typos in old ChangeLog files

Culprits identified and fixed automatically using these commands:
git ls-files | misspellings -f - |grep -v '^ERROR:' |perl -pe \
's/^(.*?)\[(\d+)\]: (\w+) -> "(.*?)"$/sed -i '\''${2}s!$3!$4!'\'' $1/'\
|bash
using http://github.com/lyda/misspell-check
* ChangeLog.2, ChangeLog.3: Fix typos.