Add a comprehensive error message to pycurl error 77. BZ 1082648
Add a comprehensive error message to pycurl error 77. BZ 1082648

Distrotech/urlgrabber,henrysher/urlgrabber,Distrotech/urlgrabber,Distrotech/urlgrabber,henrysher/urlgrabber,Distrotech/urlgrabber,henrysher/urlgrabber,henrysher/urlgrabber