[dovecot] message order reversed on copying

[Kimura Fuyuki]

Hi,

I noticed an annoying behavior of dovecot: the message order (sequence
numbering) is reversed on COPYing in the maildir.

I suspect that the following code in maildir-save.c is working like
"pushing".

		mf->next = ctx->files;
		...
		ctx->files = mf;

Later ctx->files is used like this.

		for (mf = ctx->files; mf != NULL; mf = mf->next) {

-- fuyuki