brew.sh: don't call xcode-select if it doesn't exist
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@ -145,7 +145,7 @@ export HOMEBREW_MACOS_VERSION
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export HOMEBREW_USER_AGENT
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export HOMEBREW_USER_AGENT_CURL
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if [[ -n "$HOMEBREW_MACOS" ]]
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if [[ -n "$HOMEBREW_MACOS" && -x "/usr/bin/xcode-select" ]]
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then
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XCODE_SELECT_PATH=$('/usr/bin/xcode-select' --print-path 2>/dev/null)
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if [[ "$XCODE_SELECT_PATH" = "/" ]]
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