[BRLTTY] brltty manual page add -o option

[Jaroslav Skarvada]

Hi,

we did man page scan in Fedora and found that the -o option
is missing from the brltty manual page. The attached patch
adds it, but it may need better description

thanks & regards

Jaroslav
-------------- next part --------------
A non-text attachment was scrubbed...
Name: brltty-6.1-man-options.patch
Type: text/x-patch
Size: 537 bytes
Desc: not available
URL: <http://brltty.app/pipermail/brltty/attachments/20200519/55e2c064/attachment.bin>