Allow line wrap on specification source path

[kessplas]

It is possible to line wrap annotation text. This is useful in languages/projects that enforce "line too long" lint rules.
However, it does not seem to be possible to wrap the source path.
For example:

##= specification/s3-encryption/materials/s3-kms-keyring.md#supported-wrapping-algorithm-modes
##= type=implementation
##% The KmsKeyring MUST support decryption using KmsV1 mode.

cannot be represented as:

##= specification/s3-encryption/materials/s3-kms-keyring.md#
##= supported-wrapping-algorithm-modes
##= type=implementation
##% The KmsKeyring MUST support decryption using KmsV1 mode.

Or something similar that would allow this annotation to satisfy the linter.