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Merge pull request #431 from cedwards/no_color_improvement
improve NO_COLOR detection
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@@ -38,7 +38,7 @@ enable_color() {
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}
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# If "NO_COLOR" environment variable is present, disable output colors.
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if ! export | grep -q "NO_COLOR"; then
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if [ -z "${NO_COLOR}" ]; then
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enable_color
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fi
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