/sys/man/1/history
% cat >/sys/lib/dist/changes/1176744622.0.txt << EOF
Fix the explanation of history -b.
EOF
 [geoff] --rw-rw-r-- M 41 glenda sys 1706 Apr 16 13:20 sys/man/1/history
	/n/sourcesdump/2007/0416/plan9/sys/man/1/history:53,59 - 
	/n/sourcesdump/2007/0417/plan9/sys/man/1/history:53,60
	  option causes
	  .IR diff (1)
	  .B -n
	- to be run for each adjacent pair of dump files, while
	+ to be run for each adjacent pair of dump files.
	+ Adding
	  .B -b
	  runs
	  .IR diff
	/n/sourcesdump/2007/0416/plan9/sys/man/1/history:79,85 - 
	/n/sourcesdump/2007/0417/plan9/sys/man/1/history:80,85
	  option
	  sets the starting (most recent) date for the output.
	  .SH EXAMPLES
	- .PP
	  Check how often a user has been logged in.
	  .IP
	  .EX