b7380fdc70
Closes https://github.com/eventlet/eventlet/issues/295 (in the wsgi module we use a custom writelines implementation now). Those write() calls might write only part of the data (and even if they don't - it's more readable to make sure all data is written explicitly). I changed the test code so that the write() implementation returns the number of characters logged and it cooperates nicely with writeall() now.