main: (order) check pidfile earlier for running NM

We should check for conflicting process (pidfile)
early on and error out.

src/main.c

@@ -285,6 +285,8 @@ main (int argc, char *argv[])
 
 	nm_main_utils_ensure_root ();
 
+	nm_main_utils_ensure_not_running_pidfile (global_opt.pidfile);
+
 	if (!nm_logging_setup (global_opt.opt_log_level,
 	                       global_opt.opt_log_domains,
 	                       &bad_domains,
@@ -332,8 +334,6 @@ main (int argc, char *argv[])
 
 	nm_main_utils_ensure_rundir ();
 
-	nm_main_utils_ensure_not_running_pidfile (global_opt.pidfile);
-
 	/* Read the config file and CLI overrides */
 	config = nm_config_setup (config_cli, &error);
 	nm_config_cmd_line_options_free (config_cli);