Make loading parskip.sty conditional on its availability
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@ -139,7 +139,12 @@ $if(strikeout)$
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$endif$
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$if(indent)$
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$else$
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\IfFileExists{parskip.sty}{%
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\usepackage{parskip}
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}{% else
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\setlength{\parindent}{0pt}
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\setlength{\parskip}{6pt plus 2pt minus 1pt}
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}
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$endif$
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\setlength{\emergencystretch}{3em} % prevent overfull lines
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\providecommand{\tightlist}{%
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