tree-wide: Use log_setup() everywhere

Otherwise the default log target is the console and we won't use
the journal socket even if it is available.

src/socket-proxy/socket-proxyd.c

@@ -676,8 +676,7 @@ static int run(int argc, char *argv[]) {
         _unused_ _cleanup_(notify_on_cleanup) const char *notify_stop = NULL;
         int r, n, fd;
 
-        log_parse_environment();
-        log_open();
+        log_setup();
 
         r = parse_argv(argc, argv);
         if (r <= 0)