Merge pull request modelica#3002 from modelica/fix-year

Fix year in date reference

chapters/connectors.tex

@@ -793,7 +793,7 @@ \subsection{Overconstrained Equation Operators for Connection Graphs}\label{over
 The array dimension $n$ of \lstinline!residue! shall be a constant \lstinline!Integer! expression that can be evaluated during translation, with $n \geq 0$.
 The \lstinline!equalityConstraint! expresses the equality between the two type instances \lstinline!T1! and \lstinline!T2! or the record instances \lstinline!R1! and \lstinline!R2!, respectively, as the $n$ non-redundant equation residuals returned in \lstinline!residue!.
 That is, the set of $n$ non-redundant equations stating that \lstinline!R1 = R2! is given by the equation (%
-% Just a '0' doesn't work in \lstinline as reported in (closed as fixed on 2020-09-07):
+% Just a '0' doesn't work in \lstinline as reported in (closed as fixed on 2021-09-07):
 % - https://github.com/brucemiller/LaTeXML/issues/1651 -- fixed on 'master'
 \ifpdf
 \lstinline!0!

chapters/lexicalstructure.tex

@@ -154,7 +154,7 @@ \subsection{Floating Point Numbers}\label{floating-point-numbers}
 \subsection{Integer Literals}\label{integer-literals}
 
 Literals of type \lstinline!Integer! are sequences of decimal digits, e.g.\ as in the integer numbers \lstinline!33!,
-% Just a '0' doesn't work in \lstinline as reported in (closed as fixed on 2020-09-07):
+% Just a '0' doesn't work in \lstinline as reported in (closed as fixed on 2021-09-07):
 % - https://github.com/brucemiller/LaTeXML/issues/1651 -- fixed on 'master'
 \ifpdf
 \lstinline!0!%