mozilla/rr — pull request #1049 by rocallahan (2014-04-09 09:25:43+00:00)
Title: When exec'ing a 64-bit image (not currently supported by rr),

cause the exec to fail cleanly without aborting rr.

Also print slightly better messages when the user tries to apply rr
to a 64-bit image directly.

Resolves issue #1043.