Fix sip show history.

Closes issue #11312


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@89446 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_sip.c

@@ -12213,8 +12213,8 @@ static char *sip_show_history(struct ast_cli_entry *e, int cmd, struct ast_cli_a
 	case CLI_INIT:
 		e->command = "sip show history";
 		e->usage =
-			"Usage: sip show history <channel>\n"
-			"       Provides detailed dialog history on a given SIP channel.\n";
+			"Usage: sip show history <call-id>\n"
+			"       Provides detailed dialog history on a given SIP call (specified by call-hid).\n";
 		return NULL;
 	case CLI_GENERATE:
 		return complete_sip_show_history(a->line, a->word, a->pos, a->n);