Typo.
 [rsc] --rw-rw-r-- M 292888 rsc sys 17789 Sep 24 07:09 sys/man/8/fossilcons
	/n/sourcesdump/2005/0924/plan9/sys/man/8/fossilcons:830,836 - 
	/n/sourcesdump/2005/0925/plan9/sys/man/8/fossilcons:830,836
	  option causes
	  .I check
	  to scan old snapshots.
	- Specfying
	+ Specifying
	  .B snapshot
	  causes
	  .I check