| flag | Package flag implements command-line flag parsing. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| golang.org/x/tools/go/packages | Package packages loads Go packages for inspection and analysis. |
| honnef.co/go/tools/go/loader | |
| honnef.co/go/tools/lintcmd/cache | Package cache implements a build artifact cache. |
| honnef.co/go/tools/unused | Package unused contains code for finding unused code. |
| log | Package log implements a simple logging package. |
| os | Package os provides a platform-independent interface to operating system functionality. |