tools: 'evpn mh' is a new one-line context

[qlyoung]

frr-reload.py needs to know about config-level commands, otherwise it
assumes they are contexts

note, this can go in separately from the actual multihoming prs. If requested we can get it into that branch

Signed-off-by: Quentin Young qlyoung@cumulusnetworks.com

[LabN-CI]

💚 Basic BGPD CI results: SUCCESS, 0 tests failed

Results table

_	_
Result	SUCCESS git merge/6614 a840a40
Date	06/18/2020
Start	17:25:28
Finish	17:51:12
Run-Time	25:44
Total	1815
Pass	1815
Fail	0
Valgrind-Errors	0
Valgrind-Loss	0
Details	vncregress-2020-06-18-17:25:28.txt
Log	autoscript-2020-06-18-17:26:26.log.bz2
Memory	479 499 426

For details, please contact louberger

[NetDEF-CI]

Continuous Integration Result: SUCCESSFUL

Congratulations, this patch passed basic tests

Tested-by: NetDEF / OpenSourceRouting.org CI System

CI System Testrun URL: https://ci1.netdef.org/browse/FRR-FRRPULLREQ-12741/

This is a comment from an automated CI system.
For questions and feedback in regards to this CI system, please feel free to email
Martin Winter - mwinter (at) opensourcerouting.org.

Warnings Generated during build:

Debian 10 amd64 build: Successful with additional warnings

Debian Package lintian failed for Debian 10 amd64 build:
(see full package build log at https://ci1.netdef.org/browse/FRR-FRRPULLREQ-12741/artifact/DEB10BUILD/ErrorLog/log_lintian.txt)

W: frr source: pkg-js-tools-test-is-missing
W: frr source: newer-standards-version 4.4.1 (current is 4.3.0)
W: frr source: pkg-js-tools-test-is-missing
W: frr source: newer-standards-version 4.4.1 (current is 4.3.0)
W: frr-snmp: changelog-file-missing-explicit-entry 6.0-2 -> 7.5-dev-20200618-00-ga840a40df-0 (missing) -> 7.5-dev-20200618-00-ga840a40df-0~deb10u1
W: frr-doc: changelog-file-missing-explicit-entry 6.0-2 -> 7.5-dev-20200618-00-ga840a40df-0 (missing) -> 7.5-dev-20200618-00-ga840a40df-0~deb10u1
W: frr: changelog-file-missing-explicit-entry 6.0-2 -> 7.5-dev-20200618-00-ga840a40df-0 (missing) -> 7.5-dev-20200618-00-ga840a40df-0~deb10u1
W: frr-rpki-rtrlib: changelog-file-missing-explicit-entry 6.0-2 -> 7.5-dev-20200618-00-ga840a40df-0 (missing) -> 7.5-dev-20200618-00-ga840a40df-0~deb10u1
W: frr-pythontools: changelog-file-missing-explicit-entry 6.0-2 -> 7.5-dev-20200618-00-ga840a40df-0 (missing) -> 7.5-dev-20200618-00-ga840a40df-0~deb10u1