Scott Lahteine 06f401e7e5 Redo "invalid extruder" to save 264 bytes
- Use `setTargetedHotend` in `M200`, as with other commands that use
`T` for the extruder
- Synthesize the "invalid extruder" message, obviating several long
strings
2015-05-28 22:25:28 -07:00
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