current_date single quote bug

[Caffeinate T. W. <moc...@ya...>]

i have pgsql 7.2b4 installed. when i setup sql-ledger 1.8.0p1 i had to
change all occurrances of 

  'current_date' 

to 

  current_date

in the ./sql directory, files:

  Pg-tables.sql
  upgrade-*

note the missing single quotes. 

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