Resolves: #2047868
udf_example.so contains following deprecated functions:
gethostbyaddr
gethostbyname
inet_addr
inet_ntoa
The udf_example.so can be ignored from badfuncs check, because it is an
exemplary file, showing users how to write own loadable functions. Even
though code from this .so can be used in mysql server, it needs to be
manually loaded by the user.
Deprecated functions have been reported upstream [1].
[1] https://bugs.mysql.com/bug.php?id=106797
