Update gps.lua

src/apps/gps.lua

@@ -1,17 +1,5 @@
-term.setBackgroundColor(colors.white)
-term.clear()
-term.setCursorPos(1,1)
-term.setTextColor(colors.black)
-print("Loading...")
-while true do
-  term.clear()
-  x, y, z = gps.locate(0)
-  term.setCursorPos(1,3)
-  if not x then
-    x, y, z = "?", "?", "?"
-  end
-  print(" X: "..x)
-  print(" Y: "..y)
-  print(" Z: "..z)
-  sleep(1)
+local x, y, z = gps.locate(0)
+if not x then
+  x, y, z = "?", "?", "?"
 end
+sPhone.winOk("X Y Z", x.." "..y.." "..z)