Replace bool filter with 'is truthy'

[toby-griffiths]

Replaces the ' | bool' filters with ' is truthy'.

I was havving issues with this always being false, even when I set the mas_email or mas_password values. Having debugged the mas_email var to ensure it was making it in to the role correctly I raised an issue on ansible, and was advised this is the correct way to check for non-empty strings.

[toby-griffiths]

Currently the mas_email isn't tested in the tests. Would you like me to add the variables to the tests (although it's broken as discussed in #11)?

[geerlingguy]

This could be a little funky, because (a) that test (truthy) was only added in Ansible 2.10, meaning users with Ansible 2.9 would not be able to use this collection—and that test does very slightly change the potential behavior of this check (it doesn't return an actual boolean value unless configured that way, afaict reading the docs).

[toby-griffiths]

Hmmm… I see your point. Would conditional tasks, depending on ansible version work?

Odd that the've changed the functionality of the | bool filter, or is there something I've missed?

[geerlingguy]

I'm thinking it might be worth breaking the 2.9 compatibility... people should be running the latest version anyways (IMO) and 2.10's been out long enough (and 3.0/4.0) that any new users should be able to get it.