tree-wide: use consistent format of short comment for constant argument

Follow-ups for recent changes after 93378148d4.

src/core/bpf-bind-iface.c

@@ -65,7 +65,7 @@ static int bind_network_interface_install_impl(Unit *u, CGroupRuntime *crt) {
         if (isempty(cc->bind_network_interface))
                 return 0;
 
-        r = cg_get_path(crt->cgroup_path, /* suffix = */ NULL, &cgroup_path);
+        r = cg_get_path(crt->cgroup_path, /* suffix= */ NULL, &cgroup_path);
         if (r < 0)
                 return log_unit_error_errno(u, r, "bind-interface: Failed to get cgroup path: %m");
 

src/core/unit.c

@@ -5582,7 +5582,7 @@ int unit_fork_helper_process_full(Unit *u, const char *name, bool into_cgroup, F
 }
 
 int unit_fork_helper_process(Unit *u, const char *name, bool into_cgroup, PidRef *ret) {
-        return unit_fork_helper_process_full(u, name, into_cgroup, /* flags = */ 0, ret);
+        return unit_fork_helper_process_full(u, name, into_cgroup, /* flags= */ 0, ret);
 }
 
 int unit_fork_and_watch_rm_rf(Unit *u, char **paths, PidRef *ret_pid) {