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Lefty Manual: Incorrect documentation for 'monitor' method

Hello,

The lefty documentation mentions that the monitor function has the following arguments:

monitor (fileid, mode);

However, it is actually:

monitor (mode, fileid);

I'm not sure if this documentation is still being maintained, but I figured that I should mention this mistake here in case somebody else bumps into this issue in the future. Since lefty functions silently fail, I'm sure this piece of information will save somebody a decent amount of time debugging...

Thanks for listening.

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