kiji-schema: SCHEMA-612.  Fix copy-paste error in withTable javadoc.

review: https://review.kiji.org/r/1480
issue: https://jira.kiji.org/SCHEMA-612
commit: https://github.com/kijiproject/kiji-schema/commit/1cec2c6752980d5902a8d3eaeed0eb7b01741544