Print the systemd version in a format that dracut likes

- systemd 240-63-g4199f68+
+ systemd 240 (240-63-g4199f68+)

Sad, but easy.

Fixes #11330.

src/basic/util.c

@@ -557,7 +557,7 @@ uint64_t system_tasks_max_scale(uint64_t v, uint64_t max) {
 }
 
 int version(void) {
-        puts("systemd " GIT_VERSION "\n"
+        puts("systemd " STRINGIFY(PROJECT_VERSION) " (" GIT_VERSION ")\n"
              SYSTEMD_FEATURES);
         return 0;
 }