pgsql-server: Slightly rearrange psql startup code so that we read

Log Message:
-----------
Slightly rearrange psql startup code so that we read psqlrc before printing
the startup banner. This allows "\set QUIET on" in psqlrc to do what the
user probably intended. Patch from Sean Chittenden, editorializing from
Neil Conway.

Modified Files:
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    pgsql-server/src/bin/psql:
        startup.c (r1.101 -> r1.102)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/bin/psql/startup.c.diff?r1=1.101&r2=1.102)