fix wrapping of hash enumeration block params
fix wrapping of hash enumeration block params

key and value are passed as two args, not one arg that needs
deconstructing. this incorrect deconstruction worked in 1.8 but not in 1.9.

test plan: in 1.9, account reports tab should show up, and you should be
able to generate a report.

Change-Id: Id970a6b55b72ed26ab05b1b6384547305514d802
Reviewed-on: https://gerrit.instructure.com/16060
Reviewed-by: Cody Cutrer <c4fe2b1d90ef8f2548c8aeabfa633434316f0305@instructure.com>
Tested-by: Jenkins <d95b56ce41a2e1ac4cecdd398defd7414407cc08@instructure.com>
QA-Review: Clare Hetherington <40d6bb3ed7fef516c73274131d5a837c16de74fd@instructure.com>

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