Line indentation using tabs?

[Dagan McGregor]

Hi, 

The comments in the 'users' file mentions lines should be indented with a tab when providing options below a user name. 

Do all the files require configuration lines to use tabs?  Or is does it only matter for user entries? 

Are lines ignored if they are not indented with a tab? 

I notice most of the configuration files use hard tabs but I am not sure if this is convenient or enforced.

Our coding setup uses spaces to replace tabs, so I need to make sure my deployed files are formatting correctly. 

Cheers, 
Dagan McGregor