[llvm-branch-commits] [XRay] Make Test Work with Internal Shell (PR #165143)

[Aiden Grossman via llvm-branch-commits]

https://github.com/boomanaiden154 created https://github.com/llvm/llvm-project/pull/165143

There was one test that set an environment variable without using env
and also used a subshell. These are features the internal shell does not
support. Rewrite the test to use readfile/env.