svga: Fix unused printf argument.

Fix defect reported by Coverity Scan.

Extra argument to printf format specifier (PRINTF_ARGS) extra_argument: This argument was not used by the format string: info->num_outputs.

Fixes: ccb4ea5a ("svga: Add GL4.1(compatibility profile) support in svga driver") Signed-off-by: Vinson Lee vlee@freedesktop.org

cc: @bhenden