vcs: Fix pygments highlighting of code blocks with $ and '
Pygments highlighting breaks when a code block ends with a lone $ on a
line or when it has an unmatched '.
\documentclass{article}
\title{A Glimpse at Scipy}
\author{FOSSEE}
date{2010}
\begin{document}
\maketitle
SciPy is open-source software for mathematics, science, and
engineering.
\end{document}