Use RUBY for CLI test subprocesses - #3102
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| # That is what happens in ruby/ruby CI, where the tests run with a freshly built `ruby`. | ||
| # | ||
| BUNDLE_COMMAND = [RbConfig.ruby, "-S", "bundle"] | ||
| RUBY_EXECUTABLE = ENV["RUBY"] || RbConfig.ruby |
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Can you update the comment above to explain (what you already have in the PR description)
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RbConfig.rubypoints at Ruby's configured installation path, which may not exist while ruby/ruby tests an uninstalled build. Prefer theRUBYenvironment variable supplied by its test runner, withRbConfig.rubyas the fallback.