pgsql: Update comment about allowing GUCs to change scanning.

Update comment about allowing GUCs to change scanning.

Reported-by: David G. Johnston

Discussion: CAKFQuwZZvnxwSq9tNtvL+uyuDKGgV91zR_agtPxQHRWMWQRP8g@mail.gmail.com

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/3e9df858f0de5f1a37c71f24373caf8c870f6993

Modified Files
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src/backend/parser/scan.l | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

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