Fix some issues in the code for parsing and printing options.
[ISC-Bugs #22625] - properly print options that have several fields followed by an array of something for example "fIa" [ISC-Bugs #27289] - properly parse options in declarations that have several fields followed by an array of something for example "fIa" [ISC-Bugs #27296] - properly determine if we parsed a 16 or 32 bit value in evaluate_numeric_expression (extract-int). [ISC-Bugs #27314] - properly parse a zero length option from a lease file. Thanks to Marius Tomaschewski from SUSE for the report and prototype patch for this ticket as well as ticket 27289.
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