go/build: check result of strings.Cut

[cuiweixie]

No description provided.

[gopherbot]

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[gopherbot]

Message from Gopher Robot:

Patch Set 1:

(1 comment)

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[gopherbot]

Message from Keith Randall:

Patch Set 1: Auto-Submit+1 Code-Review+2 Commit-Queue+1

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[gopherbot]

Message from Go LUCI:

Patch Set 1:

Dry run: CV is trying the patch.

Bot data: {"action":"start","triggered_at":"2026-04-16T22:56:36Z","revision":"56432de9342a74b14dee524e7a5b954740141782"}

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[gopherbot]

Message from Keith Randall:

Patch Set 1: Code-Review+1

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[gopherbot]

Message from Keith Randall:

Patch Set 1: -Commit-Queue

(Performed by <GERRIT_ACCOUNT_60063> on behalf of <GERRIT_ACCOUNT_5200>)

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[gopherbot]

Message from Go LUCI:

Patch Set 1:

This CL has passed the run

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[gopherbot]

Message from Go LUCI:

Patch Set 1: LUCI-TryBot-Result+1

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