pgsql: Minor fixes for psql tab completion.

Log Message:
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Minor fixes for psql tab completion. Spell "absolute" like the English word,
not the brand of vodka. Complete FETCH <sth> <sth> with FROM and IN, not
FROM and TO (which is still pretty incomplete, but at least its the right
syntax).

Modified Files:
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pgsql/src/bin/psql:
tab-complete.c (r1.122 -> r1.123)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/bin/psql/tab-complete.c.diff?r1=1.122&amp;r2=1.123)