Fix error check on X509V3_EXT_print()#21047
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The docs I found of this function appear to be wrong, as it can also return -1 on failure. See also openssl/openssl#29793
bukka
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Makes sense for older versions.
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The docs I found of this function appear to be wrong, as it can also return -1 on failure.
See also openssl/openssl#29793
This was found by a hybrid static-dynamic analyser that looks for inconsistent handling of error checks in bindings.