Fix typo in openconfig-relay-agent.yang

[sumedhak27]

Change Scope

• DHCPv6 advertise message is spelled incorrectly; correct it.
• The change won't be backward compatible, i.e., the incorrectly
  spelled leaf won't be available further.

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[dplore]

/gcbrun

[dplore]

/gcbrun

[OpenConfigBot]

No major YANG version changes in commit 3e4ebd2

[ghananigans]

Per OC guidance,

That is, with major version 0, there should be no expectation of compatibility from one release to another, even if only the minor version number is changing.

Backwards-incompatibility LGTM given the above.

[dplore]

/gcbrun

[dplore]

Module version number needs to be updated (to 0.2.0)

[ElodinLaarz]

Discussed at OC Operators Meeting Oct 07:

Fixing a typo in major version 0 seems reasonable. Moving to last-call for 2 weeks from now.

[ElodinLaarz]

/gcbrun

[ElodinLaarz]

Module version number needs to be updated (to 0.2.0)

Seems like we still have to do this?

[ElodinLaarz]

Discussed at the OC Operators Meeting on October 28th:

Since the model is actually 9 years old, then it's actually possible that this is a "breaking" change, even though the version is still 0, as someone could have implemented it and started using it.

Our recommendation here is to make this a non-breaking change by deprecating the old-spelling and then adding the new leaf with the proper spelling.