shithub: Nail

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Show both upthread and downthread links.

--- a/mesg.c

+++ b/mesg.c

@@ -238,8 +238,14 @@

 	if((wfd = winopen(m, "body", OWRITE)) == -1)

 		return -1;

-	if(m->parent != nil && m->parent->name != nil)

-		fprint(wfd, "Upthread: %s\n", m->parent->name);

+	if(m->parent != nil || m->nchild != 0) {

+		fprint(wfd, "Thread:");

+		if(m->parent && !(m->parent->state & Sdummy))

+			fprint(wfd, " ↑ %s", m->parent->name);

+		for(i = 0; i < m->nchild; i++)

+			fprint(wfd, " ↓ %s", m->child[i]->name);

+		fprint(wfd, "\n");

+	}

 	fprint(wfd, "From: %s\n", m->fromcolon);

 	fprint(wfd, "To:   %s\n", m->to);

 	fprint(wfd, "Date: %s\n", m->date);