Update manual page.

doc/rspamc.1

@@ -191,6 +191,14 @@ This option can be repeated multiple times.
 .RS
 .RE
 .TP
+.B \-\-sort=\f[I]type\f[]
+Sort output according to a specific field.
+For \f[C]counters\f[] command the allowed values for this key are
+\f[C]name\f[], \f[C]weight\f[], \f[C]frequency\f[] and \f[C]time\f[].
+Appending \f[C]:desc\f[] to any of these types inverts sorting order.
+.RS
+.RE
+.TP
 .B \-\-commands
 List available commands
 .RS

doc/rspamc.1.md

@@ -114,6 +114,9 @@ requires input.
 \--header=*header*
 :	Add custom HTTP header for a request. You may specify header in format `name=value` or just `name` for an empty header. This option can be repeated multiple times.
 
+\--sort=*type*
+:	Sort output according to a specific field. For `counters` command the allowed values for this key are `name`, `weight`, `frequency` and `time`. Appending `:desc` to any of these types inverts sorting order.
+
 \--commands
 :	List available commands