 --> [ local path prefix ]/command/duplicate_opcode_implicit.fpp:7:3
  |
7 |   sync command C3
  |   ^^^^^^^^^^^^^^^ duplicate opcode value (17 dec, 11 hex)
  |
 ::: [ local path prefix ]/command/duplicate_opcode_implicit.fpp:3:3
  |
3 |   sync command C1 opcode 0x11
  |   --------------------------- previous occurrence is here

