test: relax help text assertion

When running test in rust-lang/rust via `./x test src/tool/cargo`, there is no rustup integrated.
rust-lang · Feb 24, 2024 · 81b3b5a · 81b3b5a
1 parent e975158
commit 81b3b5a
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/tests/testsuite/cargo/help/stdout.term.svg b/tests/testsuite/cargo/help/stdout.term.svg