Zbigniew Jędrzejewski-Szmek
95a3cfcbf6
We generally want to have error messages with a fixed structure that convey the important information, i.e. field name, error value, and the offending text for options that take short values. (The text is not printed for strings encoded with base64 and hexmem or for credentials.) Let's use a helper that prints the message in a fixed format in the majority of cases. In the few places where a custom message is useful, the helper is not used. The helper: - prints the field name, value, and error info, - quotes the value, - handles -ENOMEM, so we don't need to handle it separately everywhere. When this code was originally written, parse functions would return -1 as error. Nowadays day all return a good errno, so it is fine if we print the corresponding strerror.
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