Systemd-swap: 使用旧配置回归。 无法启动“systemd-swap: line 78: read: 1s: invalid timeout specification”

操作系统：Arch Linux
版本：4.1.0-1

/etc/systemd/swap.conf与 .pacnew conf 比较

< swapfc_frequency=1s         # How often check free swap space
---
> swapfc_frequency=1          # How often to check free swap space

顶部显示持续 30++% 的 CPU 使用率

1662996 root       1 -19    7512   2552   1836 S  32.0   0.0   0:12.29 bash systemd-swap start                                                                                                                  

Systemd Journal 被此消息无限淹没

Jun 08 23:17:32 shingetsu systemd-swap[4191261]: /usr/bin/systemd-swap: line 78: read: 1s: invalid timeout specification
Jun 08 23:17:32 shingetsu systemd-swap[4191261]: /usr/bin/systemd-swap: line 78: read: 1s: invalid timeout specification
Jun 08 23:17:32 shingetsu systemd-swap[4191261]: /usr/bin/systemd-swap: line 78: read: 1s: invalid timeout specification
Jun 08 23:17:32 shingetsu systemd-swap[4191261]: /usr/bin/systemd-swap: line 78: read: 1s: invalid timeout specification
Jun 08 23:17:32 shingetsu systemd-swap[4191261]: /usr/bin/systemd-swap: line 78: read: 1s: invalid timeout specification