[misc/ipaddr] IPAddr(): extended exception-msg if invalid address is entered
[misc/ipaddr] IPAddr(): extended exception-msg if invalid address is entered

Signed-off-by: Robert Wuttke <12e9293ec6b30c7fa8a0926af42807e929c1684f@benocs.com>

Benocs/core,Benocs/core,Benocs/core,Benocs/core,Benocs/core