spec: fix selinimum capture logging
spec: fix selinimum capture logging

we only capture data in the post-merge build; this broke in 56b526f,
since we do a /health_check before any examples run

test plan:
n/a, selenium verified selinimum capture locally

Change-Id: I2741e34d9c418380751b6fae7645875a20a01763
Reviewed-on: https://gerrit.instructure.com/69157
Reviewed-by: Ryan Norton <65299b45178f94900ff304765e8fbf07bd13b331@instructure.com>
Product-Review: Ryan Norton <65299b45178f94900ff304765e8fbf07bd13b331@instructure.com>
QA-Review: Ryan Norton <65299b45178f94900ff304765e8fbf07bd13b331@instructure.com>
Tested-by: Ryan Norton <65299b45178f94900ff304765e8fbf07bd13b331@instructure.com>
Reviewed-by: Simon Williams <088e16a1019277b15d58faf0541e11910eb756f6@instructure.com>
Tested-by: Jenkins

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