[fix] py3 compatibility

[4383]

SUMMARY

fix python3 error on documentation generation make docs with python3.5.
Using sys.maxsize instead of sys.maxint

ISSUE TYPE

• Bugfix Pull Request

COMPONENT NAME

docs/bin/generate_man.py

ANSIBLE VERSION

ansible 2.5.0 (bugfix/docs_py3_compatibility 567b236ebf) last updated 2017/09/21 17:59:14 (GMT +200)
  config file = None
  configured module search path = ['/home/herve/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /home/herve/dev/ansible/lib/ansible
  executable location = /usr/local/bin/ansible
  python version = 3.5.2 (default, Nov 17 2016, 17:05:23) [GCC 5.4.0 20160609]

ADDITIONAL INFORMATION

before changes

make docs
mkdir -p ./docs/man/man1/ ; \
PYTHONPATH=./lib docs/bin/generate_man.py --template-file=docs/templates/man.j2 --output-dir=docs/man/man1/ --output-format man lib/ansible/cli/*.py
Traceback (most recent call last):
  File "docs/bin/generate_man.py", line 253, in <module>
    allvars[cli_name] = opts_docs(cli_class_name, cli_name)
  File "docs/bin/generate_man.py", line 119, in opts_docs
    'long_desc': trim_docstring(cli.__doc__),
  File "docs/bin/generate_man.py", line 34, in trim_docstring
    indent = sys.maxint
AttributeError: module 'sys' has no attribute 'maxint'
Makefile:347 : la recette pour la cible « generate_asciidoc » a échouée
make: *** [generate_asciidoc] Erreur 1

after changes

make docs
mkdir -p ./docs/man/man1/ ; \
PYTHONPATH=./lib docs/bin/generate_man.py --template-file=docs/templates/man.j2 --output-dir=docs/man/man1/ --output-format man lib/ansible/cli/*.py
Wrote doc to /home/herve/dev/ansible/docs/man/man1/ansible-config.1.asciidoc.in
Wrote doc to /home/herve/dev/ansible/docs/man/man1/ansible-pull.1.asciidoc.in
Wrote doc to /home/herve/dev/ansible/docs/man/man1/ansible.1.asciidoc.in
Wrote doc to /home/herve/dev/ansible/docs/man/man1/ansible-inventory.1.asciidoc.in
Wrote doc to /home/herve/dev/ansible/docs/man/man1/ansible-console.1.asciidoc.in
Wrote doc to /home/herve/dev/ansible/docs/man/man1/ansible-doc.1.asciidoc.in

[ansibot]

cc @dharmabumstead
click here for bot help

[pilou-]

sys.maxsize is available in Python 2.7 and Python 3.3, sys.maxint isn't currently used in this file.

[4383]

@dharmabumstead (as randomly selected maintainer of docs namespace) could you please review this pull request ?

[4383]

Fixed by #30424