Issue 6803: Fix standalone log location prompt

[shoothzj]

Change log description
Correct the log location prompt.

Purpose of the change
Fixes #6803.

How to verify it
Launch Pravega in standalone mode, and check the standalone.log and the prompt.

[RaulGracia]

Thanks @shoothzj for your contribution. Before going into review process, we have some guidelines in the project to propose PRs: https://github.com/pravega/pravega/wiki/Contributing#issues-and-pull-requests

At least, I miss an issue that explains the problem this PR intents to solve. Also, while I understand that the change proposed my be difficult to test (is just the location of the log for standalone), maybe you could fill up the PR with a How to verify section showing the result of the change proposed while running standalone locally, as a way to validate it. Thanks!

[shoothzj]

@RaulGracia Thanks, I created #6803 and fill the How to verfiy chapter. :)

[codecov]

Codecov Report

Merging #6788 (c9ed1a8) into master (62d05db) will increase coverage by 0.00%.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master    #6788   +/-   ##
=========================================
  Coverage     86.42%   86.42%           
+ Complexity    15928    15926    -2     
=========================================
  Files          1026     1026           
  Lines         59423    59423           
  Branches       6014     6014           
=========================================
+ Hits          51357    51359    +2     
  Misses         4924     4924           
+ Partials       3142     3140    -2     

Impacted Files	Coverage Δ
...pravega/segmentstore/storage/noop/NoOpStorage.java	94.73% <0.00%> (-2.64%)	⬇️
...erver/tables/FixedKeyLengthTableSegmentLayout.java	80.00% <0.00%> (-2.33%)	⬇️
...ient/segment/impl/AsyncSegmentInputStreamImpl.java	84.02% <0.00%> (-2.09%)	⬇️
...o/pravega/segmentstore/server/logs/DurableLog.java	92.45% <0.00%> (-1.26%)	⬇️
...server/containers/ContainerEventProcessorImpl.java	87.20% <0.00%> (-1.17%)	⬇️
...tore/server/containers/StreamSegmentContainer.java	89.39% <0.00%> (-0.65%)	⬇️
...gmentstore/storage/metadata/BaseMetadataStore.java	97.43% <0.00%> (-0.29%)	⬇️
...ga/controller/task/Stream/StreamMetadataTasks.java	86.43% <0.00%> (+0.21%)	⬆️
...ver/containers/StreamSegmentContainerMetadata.java	97.45% <0.00%> (+0.63%)	⬆️
...mentstore/server/host/stat/AutoScaleProcessor.java	87.68% <0.00%> (+0.72%)	⬆️
... and 4 more

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[shoothzj]

@RaulGracia PTAL

[RaulGracia]

LGTM.

[RaulGracia]

Thanks for the contribution @shoothzj!