postmaster and postgres options assimilation

[Peter Eisentraut <peter_e(at)gmx(dot)net>]

I've looked at the issue of assimilating the options of postmaster and 
postgres, which has been mentioned now and then over the years.  Basically, 
we have five conflict cases that need to be resolved by breaking one or the 
other, namely:

-N
    postmaster: max_connections
    postgres: do not end command at newline
-o
    postmaster: postgres options
    postgres: output file
-p
    postmaster: port number
    postgres: internal use
-S
    postmaster: silent mode
    postgres: work_mem
-s
    postmaster: use SIGSTOP on backend crash
    postgres: statistics

Renaming the postgres side of -N, -o, -p, and -s might not really do any harm, 
but the -S option used to be very popular on the postgres command-line via -o 
from the postmaster, so I'm afraid that this might break existing start 
scripts.

Does anyone have suggestions about resolving these conflicts, or should we 
just forget about this issue altogether?