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Alain Bench authored
Wipe unwanted code depending on M_ICONV_HOOK_TO in charset.c:mutt_iconv_open(). Totally wipe M_ICONV_HOOK_TO symbol. Remove misusages of M_ICONV_HOOK_FROM flag in: - crypt-gpgme.c:print_utf8(). - mutt_idna.c:mutt_idna_to_local() and mutt_local_to_idna(). - pgp.c:pgp_traditional_encryptsign(). Document usage policy of M_ICONV_HOOK_FROM flag. Cosmetic downcasing of some constant charset names (utf-8, euc-jp) for consistency. Correction of a typo in the "iso8859-5" charset name.
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