info: ignore empty model/serial descriptors
Some EDIDs (e.g. goldstar-e2441) contain string descriptors for model/serial which happen to be empty. Skip them.
References: wlroots/wlroots#3599 (closed)
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Some EDIDs (e.g. goldstar-e2441) contain string descriptors for model/serial which happen to be empty. Skip them.
References: wlroots/wlroots#3599 (closed)