Imports of package utils

PathSynopsis
github.com/Sirupsen/logrus
github.com/docker/docker/pkg/progress
github.com/docker/docker/pkg/streamformatterPackage streamformatter provides helper functions to format a stream.
ioPackage io provides basic interfaces to I/O primitives.
netPackage net provides a portable interface for network I/O, including TCP/IP, UDP, domain name resolution, and Unix domain sockets.
osPackage os provides a platform-independent interface to operating system functionality.
syscallPackage syscall contains an interface to the low-level operating system primitives.