bug#59262: Dash instead of two hyphens in manual

[Antonio Diaz Diaz]

Hello.

I have found a minor bug in the manual.

In the entry descriptions of the menu at the bottom of 'Common options'[1] 
there are 6 long option names preceded by a dash instead of two hyphens 
('â@Sblock-size' instead of '--block-size', etc).

Maybe those option names should be inserted in an @option or @code command?

[1] http://www.gnu.org/software/coreutils/manual/html_node/Common-options.html

Thanks,
Antonio.