Remove the use of syscall within client.
Remove the use of syscall within client.

The syscall package is not available on all platforms, and banned on App Engine. The use of syscall was just to
print out a syscall.Errno more clearly. However, syscall.Errno's own Error() method prints out details about the
syscall. So other than a minor change to the logging output, this changes no functionality.

domainr/whois