initdb.sh fixed

OK, initdb should now work.  There were a variety of non-portable things
in initdb.sh, like assuming $EUID is defined, and other shell script and
command args that do not exist on BSDI.

I think I got them all.  If anyone sees problems, let me know.  This is
not really Peter's fault.  It takes a long time to know what is
portable and what is not portable.

--  Bruce Momjian                        |  http://www.op.net/~candle maillist@candle.pha.pa.us            |  (610)
853-3000+  If your life is a hard drive,     |  830 Blythe Avenue +  Christ can be your backup.        |  Drexel Hill,
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