Fix some typos

man/systemd.service.xml

@@ -745,7 +745,7 @@
                                 open access to the notification socket
                                 when using
                                 <varname>Type=notify</varname> or
-                                <varname>WatchdogUsec=</varname> (see
+                                <varname>WatchdogSec=</varname> (see
                                 above). If those options are used but
                                 <varname>NotifyAccess=</varname> not
                                 configured it will be implicitly set

src/core/manager.c

@@ -123,7 +123,7 @@ static int manager_setup_notify(Manager *m) {
         ev.data.ptr = &m->notify_watch;
 
         if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->notify_watch.fd, &ev) < 0) {
-                log_error("Failed to add timer change fd to epoll: %m");
+                log_error("Failed to add notification socket fd to epoll: %m");
                 return -errno;
         }