Manpages of groff-base in Debian buster

• eqn(1)
• geqn(1)
• gpic(1)
• groff(1)
• grog(1)
• grops(1)
• grotty(1)
• gtbl(1)
• neqn(1)
• nroff(1)
• pic(1)
• preconv(1)
• soelim(1)
• tbl(1)
• troff(1)