recognize 'y' for years and 'w' for weeks

[fernandolcx]

I have a network router which reports its uptime like 2w5d2h16m59s.
I'm looking to convert it to seconds to use in monitoring systems, like Zabbix. Any chance of making this work?

[kevinkhill]

Hi! glad to see you are interested. I saw your pull request, and I'm sorry this was left un-read for so long