man: remove empty trailing cells from rows and empty trailing lines
This __ line is actually the specifier for how many cells are in the table - our tables all have two elements only so let's shorten this and thus have the tables waste less space on-screen.
And the empty trailing lines are caused by excessive \n in the CDATA, let's drop this
cc @benno, this fixes the odd custom entry you found in !559 (comment 1970133)
Edited by Peter Hutterer