Moved the 'missing user in SJOIN' notice to snomask +j

Changes

@@ -2001,3 +2001,4 @@ seen. gmtime warning still there
   This feature is disabled by default (see NO_FLOOD_AWAY in config.h). 
 - Added set::anti-flood::away-count and set::anti-flood::away-period to control the away flood
   system.
+- Moved the "missing user in SJOIN" notice to snomask +j

src/channel.c

@@ -4888,8 +4888,8 @@ CMD_FUNC(m_sjoin)
 		{
 			if (!(acptr = find_person(nick, NULL)))
 			{
-				sendto_realops
-				    ("Missing user %s in SJOIN for %s from %s (%s)",
+				sendto_snomask
+				    (SNO_JUNK, "Missing user %s in SJOIN for %s from %s (%s)",
 				    nick, chptr->chname, sptr->name,
 				    backupbuf);
 				continue;