camera_models.txt doesn't have proper directory matching structure

[Jonseed]

Describe the bug
The lines in camera_models.txt don't match the directory matching structure. For example:

__camera_models_acer__
__camera_models_agfaphoto__
__camera_models_benq__
__camera_models_canon__
__camera_models_casio__
__camera_models_concord__

Shouldn't these be:

__camera_models/acer__
__camera_models/agfaphoto__
__camera_models/benq__
__camera_models/canon__
__camera_models/casio__
__camera_models/concord__

Version used
c7434e7

To Reproduce
Steps to reproduce the behaviour, include the prompt you used if applicable:

1. When you use camera_models it doesn't work correctly, and shows errors in the terminal that the models can't be found.

Also mention which checkboxes have been set.

Expected behaviour
Using the forward slash after camera_models in the txt file allows the script to find the models in the subdirectory.

Additional context
Unless I'm not using it right...

[adieyal]

Thanks for that - just uploaded a fix

[Jonseed]

Same thing with photographers.txt. Doesn't it need to have by_country/ before each country name?