pbruna/treequel — comment on commit 7cd171b8c450c2718833ee9532068359f842dc54
File:  line 0
By ged:

You're absolutely right, but again the simpler (and IMO more intention-revealing) way to do this is to handle `nil` directly:

So:

self.errors.add( oid, "MUST have a value" ) if self[ oid ].nil?

instead.