Translations:Show logic file/24/en

Starting in 1.92, the preferred naming of question codes is [a-Z][0-9a-Z_]* - meaning it must start with a letter, and can contain letters, numbers, or underscores. However, for backwards compatibility, we are are only flagging invalid variable names via a warning for now. We expect to give the option to disallow those old variable names in the future, since many of the new features (along with proper SPSS / R export) require unique and properly formatted question codes.