[FLINK-30636] [docs]: Typo fix; 'to to' -> 'to'

[gunnarmorling]

Just a fix of a surprisingly common typo in JavaDoc etc.

https://issues.apache.org/jira/browse/FLINK-30636

[gunnarmorling]

// CC @rmetzger

[rmetzger]

+1 to merge once CI has passed

[flinkbot]

CI report:

• fd00870 Azure: FAILURE

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[rmetzger]

The PR doesn't build:

[ERROR] Failed to execute goal com.diffplug.spotless:spotless-maven-plugin:2.27.1:check (spotless-check) on project flink-runtime: The following files had format violations:
[ERROR] src/main/java/org/apache/flink/runtime/io/network/api/TaskEventHandler.java
[ERROR] @@ -25,8 +25,7 @@
[ERROR] import·org.apache.flink.shaded.guava30.com.google.common.collect.Multimap;
[ERROR] 
[ERROR] /**
[ERROR] -·*·The·event·handler·manages·{@link·EventListener}·instances·and·allows·to·publish·events·to
[ERROR] -·*·them.
[ERROR] +·*·The·event·handler·manages·{@link·EventListener}·instances·and·allows·to·publish·events·to·them.
[ERROR] ·*/
[ERROR] public·class·TaskEventHandler·{
[ERROR] 
[ERROR] src/main/java/org/apache/flink/runtime/jobgraph/tasks/TaskOperatorEventGateway.java
[ERROR] @@ -30,8 +30,8 @@
[ERROR] import·java.util.concurrent.CompletableFuture;
[ERROR] 
[ERROR] /**
[ERROR] -·*·Gateway·to·send·an·{@link·OperatorEvent}·or·{@link·CoordinationRequest}·from·a·Task·to·the
[ERROR] -·*·{@link·OperatorCoordinator}·JobManager·side.
[ERROR] +·*·Gateway·to·send·an·{@link·OperatorEvent}·or·{@link·CoordinationRequest}·from·a·Task·to·the·{@link
[ERROR] +·*·OperatorCoordinator}·JobManager·side.
[ERROR] ·*
[ERROR] ·*·<p>This·is·the·first·step·in·the·chain·of·sending·Operator·Events·and·Requests·from·Operator·to
[ERROR] ·*·Coordinator.·Each·layer·adds·further·context,·so·that·the·inner·layers·do·not·need·to·know·about
[ERROR] src/test/java/org/apache/flink/runtime/io/network/partition/consumer/LocalInputChannelTest.java
[ERROR] @@ -401,8 +401,8 @@
[ERROR] ·····*·and·has·not·much·more·general·value.·If·it·becomes·obsolete·at·some·point·(future·greatness
[ERROR] ·····*·;)),·feel·free·to·remove·it.
[ERROR] ·····*
[ERROR] -·····*·<p>The·fix·in·the·end·was·to·not·acquire·the·channels·lock·when·releasing·it·and/or·not
[ERROR] -·····*·doing·any·input·gate·callbacks·while·holding·the·channel's·lock.·I·decided·to·do·both.
[ERROR] +·····*·<p>The·fix·in·the·end·was·to·not·acquire·the·channels·lock·when·releasing·it·and/or·not·doing
[ERROR] +·····*·any·input·gate·callbacks·while·holding·the·channel's·lock.·I·decided·to·do·both.
[ERROR] ·····*/
[ERROR] ····@Test
[ERROR] ····public·void·testConcurrentReleaseAndRetriggerPartitionRequest()·throws·Exception·{
[ERROR] Run 'mvn spotless:apply' to fix these violations.

[RyanSkraba]

Zero to might even be better here!

Suggested change

	* Confirms that the invokable has successfully completed all steps it needed to for the
	* Confirms that the invokable has successfully completed all steps it needed for the

[gunnarmorling]

Hum, do you really think so? I'm not a native English speaker, but it seems right to me, judging by reverting the order of the sentence parts: "for the checkpoint, it completed to steps it needed to".

[RyanSkraba]

🤔 I'm originally anglophone, but not a great editor! We didn't learn much grammar, and trying to search for the correct grammar has led me down a rabbit hole of semi-modal verbs that probably isn't worth it :D While validating the PR this one stuck out to me, but a single to isn't wrong, so LGTM either way!

[gunnarmorling]

Force-pushed an update to apply the formatter.

[gunnarmorling]

@rmetzger, could we get this one merged?

[gunnarmorling]

@rmetzger, gentle ping.

[rmetzger]

Ah, sorry for the oversight!