Summary:
See T931. LLVM users would also prefer simpler mail, and have similarly harsh opinions about the current state of affairs.
Allow installs to disable the hint blocks if they don't want them.
Test Plan: Sent myself mail with these settings on/off, got mail with/without the blocks.
Reviewers: btrahan, vrana
Reviewed By: vrana
CC: aran
Maniphest Tasks: T931
Differential Revision: https://secure.phabricator.com/D2968
Summary: This is a minor quality-of-life improvement to prevent D2968 from being as nasty as it is.
Test Plan: Ran unit tests; generated Differential, Maniphest and Diffusion emails and verified the bodies looked sensible.
Reviewers: btrahan, vrana
Reviewed By: vrana
CC: aran
Maniphest Tasks: T931
Differential Revision: https://secure.phabricator.com/D2986
