In this syntax, subsection names follow the same restrictions as for section
names.
-All the other lines are recognized as setting variables, in the form
+All the other lines (and the remainder of the line after the section
+header) are recognized as setting variables, in the form
'name = value'. If there is no equal sign on the line, the entire line
is taken as 'name' and the variable is recognized as boolean "true".
The variable names are case-insensitive and only alphanumeric