plsetopt: Set any command-line option

plsetopt (opt, optarg);

Set any command-line option internally from a program before it invokes plinit. opt is the name of the command-line option and optarg is the corresponding command-line option argument.

opt (const char *, output)

Pointer to string containing the command-line option.

optarg (const char *, output)

Pointer to string containing the argument of the command-line option.