prevent globbing in fix_code_style.sh

so you can easily call it with the recursive option, e.g.
./fix_code_style.sh -r "sw/airborne/subsystems/*.c"

fix_code_style.sh

@@ -13,6 +13,8 @@ fi
 ASTYLE_VERSION=`astyle --version 2>&1| awk '{print $4}'`
 echo "Using astyle version $ASTYLE_VERSION"
 
+set -f
+
 if [ $(bc <<< "$ASTYLE_VERSION >= 2.03") -eq 1 ]; then
     astyle --style=kr   \
         --indent=spaces=2  \