hello all,
a note: the entity "older" in messenger.properties, which is accessed
only once in compiled code as a Grouped By (date) bucket, is changed in
en-US from "Old Mail" to "Older".
it's very preferable the name doesn't change, as that just add breakage
possibilities for other string users.
https://bugzilla.mozilla.org/show_bug.cgi?id=263736