[rt-users] Composed characters in email are not encoded

[Stephane Bortzmeyer]

RT does not encode (RFC 1522) the composed characters in the header of
the email it sends:

Subject: [CODEV-NIC #80] Gestion des termes interdits et réservés 

Amavis complains (and rightly so):

X-Amavis-Alert: BAD HEADER Non-encoded 8-bit data (char C3 hex) in message header 'Subject'
	Subject: ...] Gestion des termes interdits et r\303\251serv\303\251s \n
	^

SpamAssassin thinks it's probably spam:

X-Spam-Report: 
	*  2.4 TO_HAS_SPACES To: address contains spaces
	*  2.7 SUBJ_ILLEGAL_CHARS Subject contains too many raw illegal characters