-seconds before giving up on a response. The default is 5 seconds. (The
-time format is the same as for the
-.B "ADD \-keepalive"
-option.)
+seconds before giving up on a response. The default is 5 seconds. The
+.I time
+is expressed as a nonnegative integer followed optionally by
+.BR d ,
+.BR h ,
+.BR m ,
+or
+.BR s
+for days, hours, minutes, or seconds respectively; if no suffix is
+given, seconds are assumed.