Set Flags

a -- NO_IDENT
u -- NO_PREFIX (not set)
M -- IDLE_FROM_MSG
R -- OPER_RESTART
J -- OPER_DIE
T -- TOPIC_WHO_TIME
E -- OPER_REHASH
6 -- INET6
Z -- ZIP_LINKS
l -- FAILED_OPERLOG
K -- OPER_KILL_REMOTE
F -- CLONE_CHECK
H -- HUB
p -- CRYPT_OPER_PASSWORD
I -- DEFAULT_INVISIBLE

NOT set Flags

U -- USERS_SHOWS_UTMP
P -- CRYPT_LINK_PASSWORD
j -- JAPANESE
D -- DEBUGMODE
C -- CMDLINE_CONFIG
c -- CHROOTDIR
Y -- USE_SYSLOG
k -- OPER_KILL(_LOCAL)
Q -- OPER_SQUIT_REMOTE
X -- UNIXPORT
h -- BETTER_CDELAY
n -- BETTER_NDELAY
v -- ENABLE_SIDTRACE
S -- ENABLE_SUMMON
m -- M4_PREPROC
L -- LEAST_IDLE
d -- RANDOM_NDELAY
s -- USE_SERVICES
f -- SLOW_ACCEPT