bug#20328: outdated CONTRIBUTE info re ChangeLogs

[Glenn Morris]

Package: emacs
Version: 25.0.50
Severity: minor

CONTRIBUTE contains outdated information re ChangeLogs.
Someone should review it and update it.

Random hits (almost every instance related to "ChangeLog" seems wrong to me):

  If committing changes written by someone else, make the ChangeLog
  entry in their name, not yours.

  [...]
  It is tempting to relax this rule for commit messages, since they
  are somewhat transient.

  [...]
  In ChangeLog entries, there is no standard or recommended way to
  identify revisions.

  [...]
  There is no need to make separate ChangeLog entries for files such
  as NEWS, MAINTAINERS...

etc, etc, etc