We can't depend on the args being unicode text because we're in module
land, not in the ansible controller land

Convert exceptions to unicode using to_unicode rather than str.  that stops unicode errors if the string has non-ascii text

Make run_command() work when we get byte str with non-ascii characters (instead of unicode type like we were expecting)

Fix and test.

Fixes #10536

doc: building debian package: 'asciidoc' is a required dependency

rst.j2 template better core module source wording

Remove the call to preprocess_loop data from playbook_include as
includes can't be used with loops.

Doc: use literal code blocks for YAML examples

Without this, the straight double quotes (") are displayed as curved
quotes (“ and ”).

Port #10258 to v2

Fixes a brief spelling error

Fixes a simple spelling mistake that was bugging me when I read the online
docs. Trying to make the docs as great as possible.

Update add_host example in AWS Guide

The add_host module now uses "groups" instead of "groupname" to allow for specifying more than one group.