do check user was indeed a local oper when -o or -O is set
if it is my user, use cli_sockhost() instead of cli_user()->realhost

diff -r 14467ecfea35 ircd/s_user.c
--- a/ircd/s_user.c
+++ b/ircd/s_user.c
@@ -1317,13 +1317,7 @@
           if (MyConnect(sptr))
           {
             tmpmask = cli_snomask(sptr) & ~SNO_OPER;
-            cli_handler(sptr) = CLIENT_HANDLER;
-            
-            /* notify my operators a local operator has deOPERed - wiebe */
-            sendto_opmask_butone(0, SNO_OLDSNO, "%s (%s@%s) is no longer operator (o) as %s",
-            cli_name(sptr), cli_user(sptr)->realusername, cli_user(sptr)->realhost,
-            cli_user(sptr)->opername);
-            
+            cli_handler(sptr) = CLIENT_HANDLER;            
           }
         }
         break;
@@ -1521,7 +1515,7 @@
       ++UserStats.opers;
       client_set_privs(sptr, NULL); /* may set propagate privilege */
 
-      /* notify my operators a user has OPERed on a remote server - wiebe */
+      /* notify my operators a user has OPERed on a remote server */
       if (!MyConnect(sptr)) {
          sendto_opmask_butone(0, SNO_OLDSNO, "%s (%s@%s) is now operator (O) as %s on %s",
          cli_name(sptr), cli_user(sptr)->realusername, cli_user(sptr)->realhost,
@@ -1533,20 +1527,30 @@
     if (HasPriv(sptr, PRIV_PROPAGATE)) {
       prop = 1;
     }
+
+    /* user was a local operator */
+    if (FlagHas(&setflags, FLAG_LOCOP) && !IsLocOp(sptr)) {
+
+      /* notify my operators a local operator has deOPERed */
+      sendto_opmask_butone(0, SNO_OLDSNO, "%s (%s@%s) is no longer operator (o) as %s",
+        cli_name(sptr), cli_user(sptr)->realusername, cli_sockhost(sptr),
+        cli_user(sptr)->opername);
+    }
+
     if (FlagHas(&setflags, FLAG_OPER) && !IsOper(sptr)) {
       /* user no longer oper */
       assert(UserStats.opers > 0);
       --UserStats.opers;
       
-      /* notify my operators an operator has deOPERed on the network - wiebe */
+      /* notify my operators an operator has deOPERed on the network */
       if (MyConnect(sptr)) {
         sendto_opmask_butone(0, SNO_OLDSNO, "%s (%s@%s) is no longer operator (O) as %s",
-        cli_name(sptr), cli_user(sptr)->realusername, cli_user(sptr)->realhost,
-        cli_user(sptr)->opername ? cli_user(sptr)->opername : "<unknown>");
+          cli_name(sptr), cli_user(sptr)->realusername, cli_sockhost(sptr),
+          cli_user(sptr)->opername ? cli_user(sptr)->opername : "<unknown>");
       } else {
         sendto_opmask_butone(0, SNO_OLDSNO, "%s (%s@%s) is no longer operator (O) as %s on %s",
-        cli_name(sptr), cli_user(sptr)->realusername, cli_user(sptr)->realhost,
-        cli_user(sptr)->opername ? cli_user(sptr)->opername : "<unknown>", cli_name(cli_user(sptr)->server));
+          cli_name(sptr), cli_user(sptr)->realusername, cli_user(sptr)->realhost,
+          cli_user(sptr)->opername ? cli_user(sptr)->opername : "<unknown>", cli_name(cli_user(sptr)->server));
       }
       
       client_set_privs(sptr, NULL); /* will clear propagate privilege */