Retry on more network errors
Retry on more network errors

Retries were added to luxi/wconfd RPC calls in f3aebf6ff0
to deal with the race condition of a connect happening
at precisely the time an idle connection timed out. This,
however, did not cover the situation of a timeout in precisely
the moment the client is sending the request which will look
for both parties as if the other decided to not send any data,
resulting in a ConnectionClosedError. Thus, retry on those
errors as well.

Signed-off-by: Klaus Aehlig <4ce51de36d9068cd7db2eec1151e0f3f95419008@google.com>
Reviewed-by: Hrvoje Ribicic <be5828fca31f89218048bec4189e30a581aa65da@google.com>

mbakke/ganeti,yiannist/ganeti,andir/ganeti,bitemyapp/ganeti,grnet/snf-ganeti,ganeti/ganeti,ganeti/ganeti,leshchevds/ganeti,ganeti/ganeti,andir/ganeti,yiannist/ganeti,leshchevds/ganeti,bitemyapp/ganeti,leshchevds/ganeti,yiannist/ganeti,onponomarev/ganeti,mbakke/ganeti,grnet/snf-ganeti,mbakke/ganeti,andir/ganeti,onponomarev/ganeti,dimara/ganeti,dimara/ganeti