+.SS Options
+.TP 5
+.B "\-H, \-\-history"
+With
+.BR \-l ,
+update the file with the newly entered line at the top. Other lines
+matching the newly entered string are not written. No effect without
+.BR \-l .
+.TP 5
+.BI "\-M, \-\-histmax " max
+When writing an updated history file, do not write more than
+.I max
+lines. The default is 20; a value of 0 disables a length limit on the
+history file.
+.TP 5
+.BI "\-d, \-\-default " default
+Sets the default text in the entry field to
+.IR default .
+The default default is the first item in the empty string. The special
+default string
+.RB ` @ '
+sets the default to be the first item in the history list, if one is
+supplied.