my-listings: add valgrind language

my-listings.sty

@@ -92,6 +92,14 @@
   identifierstyle=\color{black},
 }
 
+\lstdefinelanguage{valgrind}{
+  morekeywords={},
+  keywordstyle=\color{black}\bfseries,
+  stringstyle=\color{black},
+  commentstyle=\color{black},
+  identifierstyle=\color{black},
+}
+
 \input{jml-junit-listings}
 
 % alias definition