auto set usermodes +n and +I when opering

diff -r 46f97f5713b0 ircd/m_oper.c
--- a/ircd/m_oper.c
+++ b/ircd/m_oper.c
@@ -186,6 +186,8 @@
     SetFlag(sptr, FLAG_WALLOP);
     SetFlag(sptr, FLAG_SERVNOTICE);
     SetFlag(sptr, FLAG_DEBUG);
+    SetFlag(sptr, FLAG_NOCHAN);
+    SetFlag(sptr, FLAG_NOIDLE);
     
     set_snomask(sptr, SNO_OPERDEFAULT, SNO_ADD);
     cli_max_sendq(sptr) = 0; /* Get the sendq from the oper's class */