message: Modify test to make `rustc` PR mergeable
  Modify a test to be less succeptible to failure for wording changes.
diff: @@ -64,7 +64,7 @@ fn check_fail() {
  foo.cargo("check")
  .with_status(101)
  - .with_stderr_contains("[..]this function takes 0 parameters but 1 parameter was supplied")
  + .with_stderr_contains("[..]this function takes 0[..]")
  .run();
  }
  