Move remaining `undef` use in OS extensions to `prepend` · Homebrew/brew@0855d7c

Run brew tests: home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/test/cmd/--prefix_spec.rb#L16

Homebrew::Cmd::Prefix prints the prefix for a Formula Skipped: Requires homebrew/core to be tapped.

Run brew tests: home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/test/support/helper/spec/shared_examples/formulae_exist.rb#L5

RuboCop::Cop::FormulaAudit::UsesFromMacos bash formula exists Skipped: Requires homebrew/core to be tapped.

Run brew tests: home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/test/support/helper/spec/shared_examples/formulae_exist.rb#L5

RuboCop::Cop::FormulaAudit::UsesFromMacos git formula exists Skipped: Requires homebrew/core to be tapped.

Run brew tests: home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/test/support/helper/spec/shared_examples/formulae_exist.rb#L5

RuboCop::Cop::FormulaAudit::UsesFromMacos groff formula exists Skipped: Requires homebrew/core to be tapped.

Run brew tests: home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/test/support/helper/spec/shared_examples/formulae_exist.rb#L5

RuboCop::Cop::FormulaAudit::UsesFromMacos expect formula exists Skipped: Requires homebrew/core to be tapped.

Run brew tests: home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/test/support/helper/spec/shared_examples/formulae_exist.rb#L5

RuboCop::Cop::FormulaAudit::UsesFromMacos mandoc formula exists Skipped: Requires homebrew/core to be tapped.

Run brew tests: home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/test/support/helper/spec/shared_examples/formulae_exist.rb#L5

RuboCop::Cop::FormulaAudit::UsesFromMacos php formula exists Skipped: Requires homebrew/core to be tapped.

Run brew tests: home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/test/support/helper/spec/shared_examples/formulae_exist.rb#L5

RuboCop::Cop::FormulaAudit::UsesFromMacos cpio formula exists Skipped: Requires homebrew/core to be tapped.

Run brew tests: home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/test/support/helper/spec/shared_examples/formulae_exist.rb#L5

RuboCop::Cop::FormulaAudit::UsesFromMacos openssl formula exists Skipped: Requires homebrew/core to be tapped.

Run brew tests: home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/test/support/helper/spec/shared_examples/formulae_exist.rb#L5

RuboCop::Cop::FormulaAudit::UsesFromMacos xz formula exists Skipped: Requires homebrew/core to be tapped.

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