sanitizer: allow code block language class

[AlexanderYastrebov]

For golang/go#67339

[gopherbot]

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[gopherbot]

Message from Gopher Robot:

Patch Set 1:

(1 comment)

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[gopherbot]

Message from Alexander Yastrebov:

Patch Set 1:

(1 comment)

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[gopherbot]

Message from Michael Matloob:

Patch Set 1:

(1 comment)

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[gopherbot]

Message from Alexander Yastrebov:

Patch Set 1:

(1 comment)

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[gopherbot]

Message from Michael Matloob:

Patch Set 1:

(1 comment)

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[gopherbot]

Message from Roland Shoemaker:

Patch Set 1:

(1 comment)

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[AlexanderYastrebov]

With two opinions against (see CL) it makes no sense to push it forward.

[gopherbot]

Message from Alexander Yastrebov:

Patch Set 1:

(1 comment)

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