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Florent D'Halluin authored
* getters.hxx, * main.cc: Adjustements to new protoypes. * pipe.hh, * pipe.hxx: Add methods to command_output class. * pipe_getters.hh, * pipe_getters.hxx: Improve clarity of error messages. * pipe_writers.hh, * pipe_writers.hxx: Remove default output for commands that return nothing. Add some documentation in pipe.hh.
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