message: One more formatting fix.
  Closes:
  Approved by: sblackshear
diff: @@ -6,8 +6,8 @@ use vm::{
  SignatureToken,
  },
  views::{
  - FieldDefinitionView, FunctionDefinitionView, FunctionSignatureView,
  - StructDefinitionView, ViewInternals,
  + FieldDefinitionView, FunctionDefinitionView, FunctionSignatureView, StructDefinitionView,
  + ViewInternals,
  },
  };
  