tests/test-gendoc.out

test-gendoc: add tests for all languages

This ensures that we catch errors in the reST syntax early and for all
languages. The only change needed in gendoc.py was to correct the
computation of section underlines for Asian languages.

% extracting documentation from C
checking for parse errors with rst2html

% extracting documentation from da
checking for parse errors with rst2html

% extracting documentation from de
checking for parse errors with rst2html

% extracting documentation from el
checking for parse errors with rst2html

% extracting documentation from fr
checking for parse errors with rst2html

% extracting documentation from it
checking for parse errors with rst2html

% extracting documentation from ja
checking for parse errors with rst2html

% extracting documentation from pt_BR
checking for parse errors with rst2html

% extracting documentation from zh_CN
checking for parse errors with rst2html

% extracting documentation from zh_TW
checking for parse errors with rst2html