package/macros.sty : Fix abs command not ajusting to inner height

packages/macros.sty

@@ -35,7 +35,7 @@
 \newcommand{\true}{V}				% New symbol for true value
 \DeclareMathOperator{\Rel}{\mathcal{R}}		% New symbol for binary relations
 \DeclareMathOperator{\composes}{\circ}		% New symbol composing morphisms
-\DeclarePairedDelimiter{\abs}{|}{|}
+\newcommand{\abs}[1]{\left|#1\right|}
 \newcommand{\isomorphic}{\simeq}		% Isomorphism
 \DeclarePairedDelimiter{\card}{|}{|}
 \DeclarePairedDelimiter{\floor}{\lfloor}{\rfloor}