nuageinit.7: Fix a couple of minor errors

[np]

Summary

Use the correct key name in the chpasswd section.
Remove a stray line to fix the description of 'password'.

MFC after: 1 week
Sponsored by: Chelsio Communications

[dtxdf]

libexec/nuageinit/nuageinit.7

6

If you plan to set use the commit date, I think you should set the document date based on your last change. See Dd in mdoc(7):

Document date to display in the footer, by convention, the date of the last change.

[maxim]

It looks good (modulo the .Dd comment from @dtxdf).