Trim and convert C++ man pages (from 'cppman') to a TeX file.

Install 'cppman' and cache all man pages from 'cppreference.com'.

$ pip install --user cppman
$ cppman -s 'cppreference.com' -c

Configure the program by editing the manpages variable with all of the desired sections and associated man pages and the sections variable with all of the desired sections from the pages (common across all man pages - for classes and functions/methods).

$ ./convertcppman.py cppstdlib.tex