[BRLTTY] Patch: man page fix

[Dave Mielke]

[quoted lines by Jaroslav Skarvada on 2013/07/15 at 12:43 -0400]

>the attached patch changes the brltty man page the following way:
>
>- quotes dashes in the parameters,
>- fixes typo (interrface)
>- adds description for the following missed parameters:
>  --drivers-directory
>  --full-help
>  --key-table
>  --keyboard-properties
>  --tables-directory
>  --writable-directory

Thanks. For my curiosity: What does quoting the - signs do?

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