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/path/path.c

@@ -218,9 +218,7 @@ static int parse_argv(int argc, char *argv[]) {
 static int run(int argc, char* argv[]) {
         int r;
 
-        log_show_color(true);
-        log_parse_environment();
-        log_open();
+        log_setup();
 
         r = parse_argv(argc, argv);
         if (r <= 0)