Adds or updates a value in an INI file.
If the value is already in the INI file, then it is updated in-place; otherwise, a new one is added to the matching section.
Whitespace and comments on other lines are preserved.
INI file lines (as in parseIni)
fully-qualified name of the value to update (use . to specify section path)
new value to write
See Implementation
Adds or updates a value in an INI file.
If the value is already in the INI file, then it is updated in-place; otherwise, a new one is added to the matching section.
Whitespace and comments on other lines are preserved.