 --> [ local path prefix ]/tlm_channel/duplicate_name.fpp:4:3
  |
4 |   telemetry T: F32
  |   ^^^^^^^^^^^^^^^^ duplicate telemetry channel name T
  |
 ::: [ local path prefix ]/tlm_channel/duplicate_name.fpp:3:3
  |
3 |   telemetry T: U32
  |   ---------------- previous occurrence is here

