- The build fails because dependencies are not provided:

 | ===> Building for gh-0.5.5
 | /tmp/pkgsrc/wip/gh/work/src/github.com/alecthomas/chroma/lexers/internal/api.go:9:2: cannot find package "github.com/danwakefield/fnmatch" in any of:
 |         /usr/pkg/go113/src/github.com/danwakefield/fnmatch (from $GOROOT)
 |         /tmp/pkgsrc/wip/gh/work/src/github.com/danwakefield/fnmatch (from $GOPATH)
 |         /tmp/pkgsrc/wip/gh/work/.buildlink/gopkg/src/github.com/danwakefield/fnmatch
 | /tmp/pkgsrc/wip/gh/work/src/github.com/alecthomas/chroma/regexp.go:11:2: cannot find package "github.com/dlclark/regexp2" in any of:
 |         /usr/pkg/go113/src/github.com/dlclark/regexp2 (from $GOROOT)
 |         /tmp/pkgsrc/wip/gh/work/src/github.com/dlclark/regexp2 (from $GOPATH)
 |         /tmp/pkgsrc/wip/gh/work/.buildlink/gopkg/src/github.com/dlclark/regexp2
 | /tmp/pkgsrc/wip/gh/work/src/github.com/spf13/cobra/doc/yaml_docs.go:26:2: cannot find package "gopkg.in/yaml.v2" in any of:
 |         /usr/pkg/go113/src/gopkg.in/yaml.v2 (from $GOROOT)
 |         /tmp/pkgsrc/wip/gh/work/src/gopkg.in/yaml.v2 (from $GOPATH)
 |         /tmp/pkgsrc/wip/gh/work/.buildlink/gopkg/src/gopkg.in/yaml.v2
 | *** Error code 1

- Figure out how gopkg.in/yaml.v2 and gopkg.in/yaml.v3 could peacefully
  cohexists.
