[OE-core] couple ambiguities/errors(?) in rootfs-postcommands.bbclass

[Robert P. J. Day]

  perusing rootfs-postcommands.bbclass ...

  * very first comment says, "Zap the root password if debug-tweaks
    feature is not enabled". should that not more properly say, "Zap
    an *empty* root password ..." for clarity?

  * further down:

    # We want this to run as late as possible, in particular after
    # systemd_sysusers_create and set_user_group
      ^^^^^^^^^^^^^^^^^^^^^^^ ?

    i see no such routine, should this say "systemd_create_users"?

  i'll submit a patch to tweak the above and anything else i notice,
feel free to throw in other suggestions while i'm there.

rday

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Robert P. J. Day                                 Ottawa, Ontario, CANADA
                        http://crashcourse.ca

Twitter:                                       http://twitter.com/rpjday
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