egl: dri2 driver error output

This patch amends the error output string for the case where the
dri2 egl driver could not open the dri dev node.

Signed-off-by: Brian Paul <brianp@vmware.com>

src/egl/drivers/dri2/egl_dri2.c

@@ -706,7 +706,8 @@ dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp,
    dri2_dpy->fd = open(dri2_dpy->device_name, O_RDWR);
    if (dri2_dpy->fd == -1) {
       _eglLog(_EGL_FATAL,
-	      "DRI2: could not open %s (%s)", path, strerror(errno));
+	      "DRI2: could not open %s (%s)", dri2_dpy->device_name,
+              strerror(errno));
       goto cleanup_driver;
    }