TEZ-4180: Show convenient input -> output vertex names in output/sort messages

[abstractdog]

No description provided.

[tez-yetus]

🎊 +1 overall

Vote	Subsystem	Runtime	Comment
+0 🆗	reexec	17m 27s	Docker mode activated.
		_ Prechecks _
+1 💚	dupname	0m 0s	No case conflicting files found.
+1 💚	@author	0m 0s	The patch does not contain any @author tags.
+1 💚	test4tests	0m 0s	The patch appears to include 2 new or modified test files.
		_ master Compile Tests _
+0 🆗	mvndep	4m 25s	Maven dependency ordering for branch
+1 💚	mvninstall	9m 13s	master passed
+1 💚	compile	1m 57s	master passed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04
+1 💚	compile	1m 47s	master passed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10
+1 💚	checkstyle	1m 42s	master passed
+1 💚	javadoc	1m 58s	master passed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04
+1 💚	javadoc	1m 42s	master passed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10
+0 🆗	spotbugs	0m 46s	Used deprecated FindBugs config; considering switching to SpotBugs.
+1 💚	findbugs	3m 41s	master passed
		_ Patch Compile Tests _
+0 🆗	mvndep	0m 8s	Maven dependency ordering for patch
+1 💚	mvninstall	1m 13s	the patch passed
+1 💚	compile	1m 20s	the patch passed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04
+1 💚	javac	1m 20s	the patch passed
+1 💚	compile	1m 9s	the patch passed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10
+1 💚	javac	1m 9s	the patch passed
+1 💚	checkstyle	0m 12s	tez-api: The patch generated 0 new + 2 unchanged - 3 fixed = 2 total (was 5)
+1 💚	checkstyle	0m 9s	The patch passed checkstyle in tez-runtime-internals
+1 💚	checkstyle	0m 17s	tez-runtime-library: The patch generated 0 new + 228 unchanged - 9 fixed = 228 total (was 237)
+1 💚	checkstyle	0m 11s	The patch passed checkstyle in tez-mapreduce
+1 💚	whitespace	0m 0s	The patch has no whitespace issues.
+1 💚	javadoc	1m 11s	the patch passed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04
+1 💚	javadoc	1m 5s	the patch passed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10
+1 💚	findbugs	3m 18s	the patch passed
		_ Other Tests _
+1 💚	unit	1m 56s	tez-api in the patch passed.
+1 💚	unit	0m 31s	tez-runtime-internals in the patch passed.
+1 💚	unit	5m 1s	tez-runtime-library in the patch passed.
+1 💚	unit	1m 8s	tez-mapreduce in the patch passed.
+1 💚	asflicense	0m 35s	The patch does not generate ASF License warnings.
		64m 52s

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/tez-multibranch/job/PR-154/2/artifact/out/Dockerfile
GITHUB PR	#154
JIRA Issue	TEZ-4180
Optional Tests	dupname asflicense javac javadoc unit spotbugs findbugs checkstyle compile
uname	Linux a8581258fb42 4.15.0-143-generic #147-Ubuntu SMP Wed Apr 14 16:10:11 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	personality/tez.sh
git revision	master / c875b82
Default Java	Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10
Multi-JDK versions	/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 /usr/lib/jvm/java-8-openjdk-amd64:Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10
Test Results	https://ci-hadoop.apache.org/job/tez-multibranch/job/PR-154/2/testReport/
Max. process+thread count	1089 (vs. ulimit of 5500)
modules	C: tez-api tez-runtime-internals tez-runtime-library tez-mapreduce U: .
Console output	https://ci-hadoop.apache.org/job/tez-multibranch/job/PR-154/2/console
versions	git=2.25.1 maven=3.6.3 findbugs=3.0.1
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[abstractdog]

@jteagles: would you like to review this one? almost trivial logging improvement

[jteagles]

+1. This is a good change that will help debugging.