[macros] Allow \cv macro to be used in math mode

Author: tkoeppe

source/macros.tex

@@ -330,7 +330,7 @@
 \newcommand{\stage}[1]{\item[Stage #1:]}
 \newcommand{\doccite}[1]{\textit{#1}}
 \newcommand{\cvqual}[1]{\textit{#1}}
-\newcommand{\cv}{\cvqual{cv}}
+\newcommand{\cv}{\ifmmode\mathit{cv}\else\cvqual{cv}\fi}
 \newcommand{\numconst}[1]{\textsl{#1}}
 \newcommand{\logop}[1]{{\footnotesize #1}}