[MINOR] Minor English fixes

[nchammas]

What changes were proposed in this pull request?

Minor English grammar and wording fixes.

Why are the changes needed?

They're not strictly needed, but give the project a tiny bit more polish.

Does this PR introduce any user-facing change?

Yes, some user-facing errors have been tweaked.

How was this patch tested?

No testing beyond CI.

Was this patch authored or co-authored using generative AI tooling?

No.

[HyukjinKwon]

I think the test failure is related:

[info] - Error classes match with document *** FAILED *** (145 milliseconds)
[info]   "...one of the DataFrame[s] but Spark is unable..." did not equal "...one of the DataFrame[] but Spark is unable..." The error class document is not up to date. Please regenerate it by running `SPARK_GENERATE_GOLDEN_FILES=1 build/sbt "core/testOnly *SparkThrowableSuite -- -t \"Error classes match with document\""` (SparkThrowableSuite.scala:357)
[info]   Analysis:
[info]   "...one of the DataFrame[s] but Spark is unable..." -> "...one of the DataFrame[] but Spark is unable..."
[info]   org.scalatest.exceptions.TestFailedException:
[info]   at org.scalatest.Assertions.newAssertionFailedException(Assertions.scala:472)
[info]   at org.scalatest.Assertions.newAssertionFailedException$(Assertions.scala:471)
[info]   at org.scalatest.Assertions$.newAssertionFailedException(Assertions.scala:1231)
[info]   at org.scalatest.Assertions$AssertionsHelper.macroAssert(Assertions.scala:1295)
[info]   at org.apache.spark.SparkThrowableSuite.$anonfun$new$22(SparkThrowableSuite.scala:357)
[info]   at org.scalatest.enablers.Timed$$anon$1.timeoutAfter(Timed.scala:127)
[info]   at org.scalatest.concurrent.TimeLimits$.failAfterImpl(TimeLimits.scala:282)
[info]   at org.scalatest.concurrent.TimeLimits.failAfter(TimeLimits.scala:231)
[info]   at org.scalatest.concurrent.TimeLimits.failAfter$(TimeLimits.scala:230)
[info]   at org.apache.spark.SparkFunSuite.failAfter(SparkFunSuite.scala:69)
[info]   at org.apache.spark.SparkFunSuite.$anonfun$test$2(SparkFunSuite.scala:155)
[info]   at org.scalatest.OutcomeOf.outcomeOf(OutcomeOf.scala:85)
[info]   at org.scalatest.OutcomeOf.outcomeOf$(OutcomeOf.scala:83)

[xinrong-meng]

LGTM after fixing the test, thanks!

[nchammas]

Ah, the test failure is due to the generated error documentation that is checked in to git.

#44971 will eliminate this kind of maintenance headache. (Also, look at that diff count. Just beautiful.)

That PR is unfortunately blocked by the pending discussion in SPARK-46810.

[zhengruifeng]

thanks, merged to master