cli/command/system: remove deprecated io/ioutil

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

cli/command/system/events.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"sort"
 	"strings"
 	"text/template"
@@ -100,7 +99,7 @@ func makeTemplate(format string) (*template.Template, error) {
 	}
 	// we execute the template for an empty message, so as to validate
 	// a bad template like "{{.badFieldString}}"
-	return tmpl, tmpl.Execute(ioutil.Discard, &eventtypes.Message{})
+	return tmpl, tmpl.Execute(io.Discard, &eventtypes.Message{})
 }
 
 // rfc3339NanoFixed is similar to time.RFC3339Nano, except it pads nanoseconds

cli/command/system/info.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"regexp"
 	"sort"
 	"strings"
@@ -121,7 +120,7 @@ func needsServerInfo(template string, info info) bool {
 	}
 
 	// This constructs an "info" object that only has the client-side fields.
-	err = tmpl.Execute(ioutil.Discard, sparseInfo{
+	err = tmpl.Execute(io.Discard, sparseInfo{
 		ClientInfo:   info.ClientInfo,
 		ClientErrors: info.ClientErrors,
 	})