Fix error non-void function and usage of non-standard port #2
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With following settings:
we faced these errors:
.../addons/ofxModbusTCP/src/ofxModbusTcpClient.cpp:369: error: control reaches end of non-void function [-Werror=return-type]
.../addons/ofxModbusTCP/src/modbusSlave.h:50: error: control reaches end of non-void function [-Werror=return-type]
.../addons/ofxModbusTCP/src/ofxModbusTcpClient.cpp:378: error: control reaches end of non-void function [-Werror=return-type]
.../addons/ofxModbusTCP/src/modbusSlave.h:57: error: control reaches end of non-void function [-Werror=return-type]
Additionally, we had to use a non-standard port for ModbusTCP.