Metadata block in Rego comment can not contain non-breaking space

[johanfylling]

If the following policy contains non-breaking spaces (\u00A0)

# METADATA
# description: Optional authorization policy to use for protecting the OPA REST API if exposed on a public endpoint.
package system.authz

compilation will fail with

error: bundle .: 1 error occurred: authz.rego:1: rego_parse_error: yaml: unmarshal errors:
  line 1: cannot unmarshal !!str `descrip...` into ast.rawAnnotation
	# METADATA

[johanfylling]

I have not been able to replicate this, but @anderseknert encountered this when running opa inspect -a.

[anderseknert]

# METADATA
# description: foo is not bar
package main

@johanfylling sorry, I think it's Shift + Opt + Space to create these. Not sure if GitHub is kind enough to "fix" that in the above, but if so let me know and I'll send you the file.

[anderseknert]

I think it's fine to fail here, but the error message could certainly be improved!

[stale]

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