[release-1.3] Minor egress fixes

[istio-testing]

This is an automated cherry-pick of #5025

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[istio-testing]

@istio-testing: The following test failed, say /retest to rerun them all:

Test name	Commit	Details	Rerun command
lint_istio.io_release-1.3	6131ccb	link	/test lint

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[geeknoid]

This needs to be hand-merged...

[vadimeisenbergibm]

@geeknoid let me do it.

[vadimeisenbergibm]

@geeknoid I have submitted a PR #5048.