Hello,

While investigating the use of rosdoc2 I stumbled upon the --install-directory command line argument and was trying to figure what it was used for / if it was actually useful to make use of it.

From what I see in the code itself, the argument do not seem to be used. This would be confirmed as well by the replies on #80 .

I see that the --build-directory is being deprecated, should the same be made for the --install-directory?
Or was the argument kept "in the case" it would one day be used?

Extra note, if done this would certainly close #14.