Exit with exit code 10 if pkexec fails

kms/server/kms_server.c

@@ -338,7 +338,7 @@ int main(int argc, char **argv) {
     if(drmSetClientCap(drm.drmfd, DRM_CLIENT_CAP_UNIVERSAL_PLANES, 1) != 0) {
         fprintf(stderr, "kms server error: drmSetClientCap DRM_CLIENT_CAP_UNIVERSAL_PLANES failed, error: %s\n", strerror(errno));
         close(drm.drmfd);
-        return 2;
+        return 10;
     }
 
     if(drmSetClientCap(drm.drmfd, DRM_CLIENT_CAP_ATOMIC, 1) != 0) {