Optimize csv_field_value() function
Optimize csv_field_value() function

This patch improves CSV file importing as follows:

  $ time ./pstore import data/big.csv tmp

  Before:

  real    0m13.024s
  user    0m9.755s
  sys     0m0.849s

  After:

  real    0m11.751s
  user    0m8.268s
  sys     0m0.859s

Signed-off-by: Pekka Enberg <add4fcd06328a394f0ad91feda7ee057316dc5ed@cs.helsinki.fi>

penberg/pstore,penberg/pstore,penberg/pstore,penberg/pstore