The files used by sqoop are more than 2 years old, and wiki-size used for their grouping has evolved.
I suggest using this opportunity to move from a wiki-grouping to a mappers-definition format, where the file would contain the number of mappers to use for the given wiki.

• Get new wiki-sizes (esay using mediawiki-history)
• Update file based on number of mappers (use current grouping values and mappers as example)
• Update sqoop script to read mappers instead of group