@@ -89,7 +89,7 @@ require_tool ()

   envvar_name=$(echo $1 | tr '[:lower:]' '[:upper:]')

   tool=$(printenv $envvar_name || echo $1)

   local version=$($tool --version 2>/dev/null| \

-    sed -n 's/.*[^0-9.]\([0-9][0-9.]*\).*/\1/p;q')

+    sed -n 's/.*[^0-9.]\([0-9]*\.[0-9.]*\).*/\1/p;q')

   if test x"$version" = x ; then

       echo "$tool is required" >/dev/stderr

       return 1