Obvious/variants — pull request #20 by nicks (2013-10-31 21:43:25+00:00)
Title: Add errors for missing conditions

Hello @majelbstoat,

Please review the following commits I made in branch 'nick-check'.

80d11f7c14ccf312e60a4aa4665c8396bedc73cb (2013-10-31 17:42:47 -0400)
Add errors for missing conditions

Check list:

R=@majelbstoat