Exported echomail should have the Hub as the OrigNet/OrigNode

app/Classes/FTN/Message.php

@@ -425,10 +425,10 @@ class Message extends FTNBase
 	public function __toString(): string
 	{
 		$return = pack(collect(self::header)->pluck(1)->join(''),
-			$this->ff,
-			$this->tf,
-			$this->fn,
-			$this->tn,
+			$this->ff,	// Originating Node
+			$this->tf,			// Destination Node
+			$this->fn,			// Originating Net
+			$this->tn,			// Destination Net
 			$this->flags&~(self::FLAG_INTRANSIT|self::FLAG_LOCAL),	// Turn off our local/intransit bits
 			$this->cost,
 			$this->date->format('d M y  H:i:s'),