tools: make ratbagctl bold in the man page
tools: make ratbagctl bold in the man page

And a double-space to single-space change snuck in as well

Signed-off-by: Peter Hutterer <b9c50af7afa7642f6f854434cda9ffe54ece8b85@who-t.net>

whot/libratbag,libratbag/libratbag,whot/libratbag,whot/libratbag,libratbag/libratbag,libratbag/libratbag