tgui usr to ui.user

code/modules/hydroponics/seed_machines.dm

@@ -175,8 +175,8 @@
 	if(..())
 		return TRUE
 
-	usr.set_machine(src)
-	add_fingerprint(usr)
+	ui.user.set_machine(src)
+	add_fingerprint(ui.user)
 
 	switch(action)
 		if("eject_packet")

code/modules/hydroponics/trays/tray_tools.dm

@@ -66,7 +66,7 @@
 
 	switch(action)
 		if("print")
-			print_report(usr)
+			print_report(ui.user)
 			return TRUE
 		if("close")
 			last_seed = null