Imports of package opts

PathSynopsis
encoding/csvPackage csv reads and writes comma-separated values (CSV) files.
encoding/jsonPackage json implements encoding and decoding of JSON as defined in RFC 7159.
fmtPackage fmt implements formatted I/O with functions analogous to C's printf and scanf.
github.com/docker/docker/api/types
github.com/docker/docker/libnetwork/ipamutilsPackage ipamutils provides utility functions for ipam management
github.com/docker/docker/pkg/homedir
github.com/docker/go-unitsPackage units provides helper function to parse and print size and time units in human-readable format.
github.com/pkg/errorsPackage errors provides simple error handling primitives.
netPackage net provides a portable interface for network I/O, including TCP/IP, UDP, domain name resolution, and Unix domain sockets.
net/urlPackage url parses URLs and implements query escaping.
osPackage os provides a platform-independent interface to operating system functionality.
pathPackage path implements utility routines for manipulating slash-separated paths.
path/filepathPackage filepath implements utility routines for manipulating filename paths in a way compatible with the target operating system-defined file paths.
regexpPackage regexp implements regular expression search.
strconvPackage strconv implements conversions to and from string representations of basic data types.
stringsPackage strings implements simple functions to manipulate UTF-8 encoded strings.