Thread: pgsql: Remove some redundant tests and improve comments in next_token().

Log Message:
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Remove some redundant tests and improve comments in next_token().
Cosmetic, but it might make this a bit less confusing to the next reader.

Modified Files:
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    pgsql/src/backend/libpq:
        hba.c (r1.164 -> r1.165)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/libpq/hba.c?r1=1.164&r2=1.165)