mikeh 45093b4f56 Add support for ~_, ~x, ~i, ~a, ~A, ~<, and ~r! tilde-escapes. Improve ...

tilde-escapes documentation.

Mostly obtained from:	NetBSD

2001-12-22 22:16:48 +00:00

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mail.help

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mail.rc

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mail.tildehelp

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