cmd/goimports: ignore line breaks when comparing

[Zxilly]

Updates: golang/go#70297

[gopherbot]

This PR (HEAD: 434d3f1) has been imported to Gerrit for code review.

Please visit Gerrit at https://go-review.googlesource.com/c/tools/+/627415.

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[gopherbot]

Message from Gopher Robot:

Patch Set 1:

(1 comment)

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[gopherbot]

Message from Zxilly Chou:

Patch Set 2:

(1 comment)

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[gopherbot]

Message from Robert Findley:

Patch Set 2: Commit-Queue+1

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[gopherbot]

Message from Go LUCI:

Patch Set 2:

Dry run: CV is trying the patch.

Bot data: {"action":"start","triggered_at":"2024-12-02T14:49:21Z","revision":"365137a03e8bdd7b5aa868521f3d36c3fc6f5671"}

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[gopherbot]

Message from Robert Findley:

Patch Set 2: -Commit-Queue

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[gopherbot]

Message from Go LUCI:

Patch Set 2:

This CL has failed the run. Reason:

Tryjob golang/try/x_tools-gotip-linux-amd64 has failed with summary (view all results):

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• go on master (commit c5adb82)
• tools on master (change 627415)

Build or test failure, click here for results.

To reproduce, try gomote repro 8729653210054696193.

Additional links for debugging:

• Output for test golang.org/x/tools module
• Output for test golang.org/x/tools/gopls module

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[gopherbot]

Message from Go LUCI:

Patch Set 2: LUCI-TryBot-Result-1

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