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Every option must have exactly one copy of both of these attributes.
#define-d name to be emitted. It must not conflict with any
other names you may be using in your program.
For example, if your option name is, debug or munged-up,
you must not use the #define names DEBUG (or
MUNGED_UP) in your program for non-AutoOpts related purposes.
They are now used by AutoOpts.
usage() output next to the option name. If, however, the
option is a documentation option, it will appear on one or more lines by
itself. It is thus used to visually separate and comment upon groups of
options in the usage text.