pgsql-server: Cause initdb to actually accept -s as intended, and fix

Log Message:
-----------
Cause initdb to actually accept -s as intended, and fix some typos in
a comment.

Jon Jensen

Modified Files:
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pgsql-server/src/bin/initdb:
initdb.c (r1.48 -> r1.49)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/bin/initdb/initdb.c.diff?r1=1.48&r2=1.49)