Fix an UndefVarError in the Random tests

[DilumAluthge]

Spotted in PkgEval: https://s3.amazonaws.com/julialang-reports/nanosoldier/pkgeval/by_hash/45b2a06_vs_ee63552/Random.primary.log

[DilumAluthge]

@nanosoldier runtests([""Random"], configuration = (goal=:test,), vs_configuration = (goal=:test,))

[DilumAluthge]

@nanosoldier runtests([""Random"], configuration = (goal=:test,), vs_configuration = (goal=:test,))

[KristofferC]

How does that log (of LinearAlgebra) show this?

[DilumAluthge]

😂 😂 😂

Indeed I pasted the wrong log. Here's the right one: https://s3.amazonaws.com/julialang-reports/nanosoldier/pkgeval/by_hash/45b2a06_vs_ee63552/Random.primary.log

[DilumAluthge]

@nanosoldier runtests([""Random"], configuration = (goal=:test,), vs_configuration = (goal=:test,))

[DilumAluthge]

Alright, PkgEval isn't responding, but the change here is small and (at least from manually reading the code) should fix the error in question.