TEMP_EXTRACT_SIZEn extract file size limits [CR 424817]

Extract file size limits listed for TEMP_EXTRACT_SIZEn are default values, rather than upper limits.

When large file systems, such as JFS2, support file size larger than the default value, set TEMP_EXTRACT_SIZEn to the value that the file system allows. For example, to support lTB set option:

TEMP_EXTRACT_SIZE1 = 1000000000 KB