Documentation of return values in ModbusServer.h and Arduino Reference does not match source code

[smacinnes]

The documentation of return values in ModbusServer.h for configure functions are reversed from the actual source code. This error then shows up in the Arduino Reference site.

Comments in src/ModbusServer.h claiming return value of 0 on success, 1 on failure

https://github.com/arduino-libraries/ArduinoModbus/blob/12c32ce59f033d013af733116c3273a4f1331dc8/src/ModbusServer.h#L32-L40

Source code in src/ModbusServer.cpp showing a return value of 0 on failure, 1 on success:

https://github.com/arduino-libraries/ArduinoModbus/blob/12c32ce59f033d013af733116c3273a4f1331dc8/src/ModbusServer.cpp#L53-L77

Error showing in Arduino Reference:

https://www.arduino.cc/reference/en/libraries/arduinomodbus/modbusserver.configurecoils/

This is the case for:

• configureCoils()
• configureDiscreteInputs()
• configureHoldingRegisters()
• configureInputRegisters()
• poll()