cue: fix small typo in function documentation
A small typo is fixed that makes the function doc for value.IsClosed
clearer (list of struct -> list or struct).
Signed-off-by: Noam Dolovich <noam.tzvi.dolovich@gmail.com>
Change-Id: I0252f02dcf9634e99ebb587b8bd434ca408afbe1
Reviewed-on: https://review.gerrithub.io/c/cue-lang/cue/+/1193361
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: CUEcueckoo <cueckoo@cuelang.org>
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