Include what account set the topic when we are bursting topics.

We could also burst it like "nick" or "*account" or something alike
to distingish between a nick and an account, but then, nicks do not
mean a lot here, accounts do.

Control this sending/parsing with a new feature TOPIC_BURST_ACCOUNT?

diff -r 5385c7388842 ircd/channel.c
--- a/ircd/channel.c	Mon Aug 10 14:18:35 2009 +0100
+++ b/ircd/channel.c	Mon Aug 10 14:18:41 2009 +0100
@@ -1129,8 +1129,11 @@
   if (opped_members)
     MyFree(opped_members);
   if (feature_bool(FEAT_TOPIC_BURST) && (chptr->topic[0] != '\0'))
-      sendcmdto_one(&me, CMD_TOPIC, cptr, "%H %Tu %Tu :%s", chptr,
-                    chptr->creationtime, chptr->topic_time, chptr->topic);
+      sendcmdto_one(&me, CMD_TOPIC, cptr, "%H %Tu %Tu %s%s:%s", chptr,
+        chptr->creationtime, chptr->topic_time,
+        chptr->topic_who_is_account ? chptr->topic_who : "", /* who set the topic */
+        chptr->topic_who_is_account ? " " : "",
+        chptr->topic);
 }
 
 /** Canonify a mask.
diff -r 5385c7388842 ircd/m_topic.c
--- a/ircd/m_topic.c	Mon Aug 10 14:18:35 2009 +0100
+++ b/ircd/m_topic.c	Mon Aug 10 14:18:41 2009 +0100
@@ -49,7 +49,7 @@
  * @param[in] ts Timestamp that topic was set (0 for current time).
  */
 static void do_settopic(struct Client *sptr, struct Client *cptr,
-		        struct Channel *chptr, char *topic, time_t ts)
+		        struct Channel *chptr, char *topic, time_t ts, const char *who)
 {
    struct Client *from;
    int newtopic;
@@ -65,15 +65,19 @@
    newtopic=ircd_strncmp(chptr->topic,topic,TOPICLEN)!=0;
    /* setting a topic */
    ircd_strncpy(chptr->topic, topic, TOPICLEN);
-   ircd_strncpy(chptr->topic_who,
-     IsAccount(from) ? cli_user(from)->account : cli_name(from),
-     IsAccount(from) ? ACCOUNTLEN : NICKLEN);
-   chptr->topic_who_is_account = IsAccount(from) ? 1 : 0;
+   if (!who)
+     ircd_strncpy(chptr->topic_who,
+       IsAccount(from) ? cli_user(from)->account : cli_name(from),
+       IsAccount(from) ? ACCOUNTLEN : NICKLEN);
+   else
+     ircd_strncpy(chptr->topic_who, who, ACCOUNTLEN);
+   chptr->topic_who_is_account = IsAccount(from) || who ? 1 : 0;
    chptr->topic_time = ts ? ts : TStime();
    /* Fixed in 2.10.11: Don't propagate local topics */
    if (!IsLocalChannel(chptr->chname))
-     sendcmdto_serv_butone(sptr, CMD_TOPIC, cptr, "%H %Tu %Tu :%s", chptr,
-		           chptr->creationtime, chptr->topic_time, chptr->topic);
+     sendcmdto_serv_butone(sptr, CMD_TOPIC, cptr, "%H %Tu %Tu %s%s:%s", chptr,
+       chptr->creationtime, chptr->topic_time,
+       who ? who : "", who ? " " : "", chptr->topic);
    if (newtopic)
    {
      struct Membership *member;
@@ -153,7 +157,7 @@
     else if (!client_can_send_to_channel(sptr, chptr, 1))
       send_reply(sptr, ERR_CANNOTSENDTOCHAN, chptr->chname);
     else
-      do_settopic(sptr,cptr,chptr,topic,0);
+      do_settopic(sptr, cptr, chptr, topic, 0, 0);
   }
   return 0;
 }
@@ -177,6 +181,7 @@
   struct Membership* member;
   char *topic = 0, *name, *p = 0;
   time_t ts = 0;
+  const char *who = 0;
 
   if (parc < 3)
     return need_more_params(sptr, "TOPIC");
@@ -207,11 +212,15 @@
     if (parc > 4 && (ts = atoi(parv[3])) && chptr->topic_time > ts)
       continue;
 
+    /* got info on who set the topic sent in burst */
+    if (parc > 5)
+      who = parv[4];
+
     /* Reveal delayedjoin user */
     if ((member = find_member_link(chptr, sptr)) && IsDelayedJoin(member))
       RevealDelayedJoin(member);
 
-    do_settopic(sptr,cptr,chptr,topic, ts);
+    do_settopic(sptr, cptr, chptr, topic, ts, who);
   }
   return 0;
 }