Update Go version to 1.18, fixes #593

Author: tdewolff

README.md

@@ -79,7 +79,7 @@ Minifiers or bindings to minifiers exist in almost all programming languages. So
 This minifier proves to be that fast and extensive minifier that can handle HTML and any other filetype it may contain (CSS, JS, ...). It is usually orders of magnitude faster than existing minifiers.
 
 ## Installation
-Make sure you have [Git](https://git-scm.com/) and [Go](https://golang.org/dl/) (1.13 or higher) installed, run
+Make sure you have [Git](https://git-scm.com/) and [Go](https://golang.org/dl/) (1.18 or higher) installed, run
 ```
 mkdir Project
 cd Project

go.mod

@@ -1,15 +1,18 @@
 module github.com/tdewolff/minify/v2
 
-go 1.13
+go 1.18
 
 require (
-	github.com/cheekybits/is v0.0.0-20150225183255-68e9c0620927 // indirect
 	github.com/djherbis/atime v1.1.0
 	github.com/dustin/go-humanize v1.0.1
 	github.com/fsnotify/fsnotify v1.6.0
 	github.com/matryer/try v0.0.0-20161228173917-9ac251b645a2
 	github.com/spf13/pflag v1.0.5
 	github.com/tdewolff/parse/v2 v2.6.6
 	github.com/tdewolff/test v1.0.9
-	golang.org/x/sys v0.6.0 // indirect
+)
+
+require (
+	github.com/cheekybits/is v0.0.0-20150225183255-68e9c0620927 // indirect
+	golang.org/x/sys v0.10.0 // indirect
 )

go.sum

@@ -18,3 +18,5 @@ github.com/tdewolff/test v1.0.9/go.mod h1:6DAvZliBAAnD7rhVgwaM7DE5/d9NMOAJ09SqYq
 golang.org/x/sys v0.0.0-20220908164124-27713097b956/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0 h1:MVltZSvRTcU2ljQOhs94SXPftV6DCNnZViHeQps87pQ=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.10.0 h1:SqMFp9UcQJZa+pmYuAKjd9xq1f0j5rLcDIk0mj4qAsA=
+golang.org/x/sys v0.10.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=