Bump go version. 1.17

go.mod

@@ -1,18 +1,25 @@
 module github.com/trezorg/lingualeo
 
-go 1.16
+go 1.17
 
 require (
 	github.com/BurntSushi/toml v0.3.1
-	github.com/cpuguy83/go-md2man/v2 v2.0.0 // indirect
-	github.com/konsorten/go-windows-terminal-sequences v1.0.2 // indirect
-	github.com/kr/pretty v0.1.0 // indirect
 	github.com/sirupsen/logrus v1.5.0
 	github.com/stretchr/testify v1.4.0
 	github.com/urfave/cli/v2 v2.2.0
 	github.com/wsxiaoys/terminal v0.0.0-20160513160801-0940f3fc43a0
 	golang.org/x/net v0.0.0-20200421231249-e086a090c8fd
+	gopkg.in/yaml.v2 v2.2.8
+)
+
+require (
+	github.com/cpuguy83/go-md2man/v2 v2.0.0 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/konsorten/go-windows-terminal-sequences v1.0.2 // indirect
+	github.com/kr/pretty v0.1.0 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/russross/blackfriday/v2 v2.0.1 // indirect
+	github.com/shurcooL/sanitized_anchor_name v1.0.0 // indirect
 	golang.org/x/sys v0.0.0-20200420163511-1957bb5e6d1f // indirect
 	gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 // indirect
-	gopkg.in/yaml.v2 v2.2.8
 )

pkg/files/channel.go

@@ -6,7 +6,7 @@ import (
 	"github.com/trezorg/lingualeo/pkg/heap"
 )
 
-// OrderedChannel gets cahnnel and returns channel ordered by GetIndex
+// OrderedChannel gets channel and returns channel ordered by GetIndex
 func OrderedChannel(input <-chan File, count int) <-chan File {
 	out := make(chan File, count)
 

pkg/files/download.go

@@ -47,7 +47,7 @@ func NewFileDownloader(url string) Downloader {
 	return &FileDownloader{URL: url}
 }
 
-// GetWriter prepares WriteCloser for termporary file
+// GetWriter prepares WriteCloser for temporary file
 func (f *FileDownloader) GetWriter() (io.WriteCloser, string, error) {
 	fl, err := ioutil.TempFile(filePath, fileTemplate)
 	if err != nil {