Explanatory Error Msgs for var validation in 0-init/tasks/validate_vars.yml, munin/tasks/main.yml, wordpress/tasks/main.yml etc #2180
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Building on PR #2179, in support of implementers/installers/devs/operators who modify /etc/iiab/local_vars.yml and (not infrequently!) leave it in a completely unusable state — accidentally of course — but error messaging needs to be quite clear helping them understand where they've gone wrong!
Not 100% there yet, but this is a good start-