[EXIM] Violations of RFC821 and RFC1869 wrt response formats

Observe the transcript below.

Note that according to RFC1869, the format of the EHLO response is:
     ehlo-ok-rsp  ::=      "250"    domain [ SP greeting ] CR LF
                    / (    "250-"   domain [ SP greeting ] CR LF
                        *( "250-"      ehlo-line           CR LF )
                           "250"    SP ehlo-line           CR LF   )

So you must not include the line `Supported functions are:', and you
must not include the colon after the domain in the response.

Ian.

220 chiark.greenend.org.uk ESMTP Exim 1.82 #3 Wed, 25 Mar 1998 23:00:16 +0000
ehlo localhost
250-chiark.greenend.org.uk: Hello ian at localhost [127.0.0.1]
250-Supported functions are:
250-8BITMIME
250-EXPN
250 HELP
quit
221 chiark.greenend.org.uk closing connection

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