Avoid abort() in lib/extras/hex.c
hex_encode() may call abort() via hexchar(). I think this is not appropriate for library code.
That function is used by gnutls_hex_encode() and gnutls_hex_encode2() which are used by other library functions.
hex_encode() may call abort() via hexchar(). I think this is not appropriate for library code.
That function is used by gnutls_hex_encode() and gnutls_hex_encode2() which are used by other library functions.