Fix out of date SectionParser comment.

//  SectionParser is an interface that can parse a given 'section' in init.

//

//  You can implement up to 4 functions below, with ParseSection() being mandatory.

//  The first two function return bool with false indicating a failure and has a std::string* err

//  parameter into which an error string can be written.  It will be reported along with the

//  filename and line number of where the error occurred.

//  You can implement up to 4 functions below, with ParseSection being mandatory. The first two

//  functions return Result<Success> indicating if they have an error. It will be reported along

//  with the filename and line number of where the error occurred.

//

//  1) bool ParseSection(std::vector<std::string>&& args, const std::string& filename,

//                       int line, std::string* err)

//  1) ParseSection

//    This function is called when a section is first encountered.

//

//  2) bool ParseLineSection(std::vector<std::string>&& args, int line, std::string* err)

//  2) ParseLineSection

//    This function is called on each subsequent line until the next section is encountered.

//

//  3) bool EndSection()

//  3) EndSection

//    This function is called either when a new section is found or at the end of the file.

//    It indicates that parsing of the current section is complete and any relevant objects should

//    be committed.

//

//  4) bool EndFile()

//  4) EndFile

//    This function is called at the end of the file.

//    It indicates that the parsing has completed and any relevant objects should be committed.