| encoding/json | Package json implements encoding and decoding of JSON as defined in RFC 7159. |
| errors | Package errors implements functions to manipulate errors. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| github.com/coreos/etcd/Godeps/_workspace/src/github.com/codegangsta/cli | Package cli provides a minimal framework for creating and organizing command line Go applications. |
| github.com/coreos/etcd/Godeps/_workspace/src/github.com/coreos/go-etcd/etcd | |
| io | Package io provides basic interfaces to I/O primitives. |
| io/ioutil | Package ioutil implements some I/O utility functions. |
| net/url | Package url parses URLs and implements query escaping. |
| os | Package os provides a platform-independent interface to operating system functionality. |
| os/exec | Package exec runs external commands. |
| os/signal | Package signal implements access to incoming signals. |
| strings | Package strings implements simple functions to manipulate UTF-8 encoded strings. |