Added German Language

mainnet_rules.md

@@ -23,7 +23,7 @@ This article represents the central source of information for the Skywire mainne
 * Read this information thoroughly and ask in the [Skywire](https://t.me/skywire) Telegram channel if some things appear to not be covered. 
 * Please join [SkywirePSA](https://t.me/SkywirePSA) as well to get structured public service announcements (PSA) about the Skywire project.
 * In case you bought an official Skyminer in the [Skycoin hardware store](https://store.skycoin.com/) please read [the Official Skyminer Guide](https://github.com/skycoinproject/skywire-mainnet/wiki/Skyminer-Official-Guide) if you haven't done that already. 
-* Participants will contacted at the beginning of every month via the so called *Skywire Status Update Emails* including details of their last month's Skywire mainnet participation.
+* Participants will be contacted at the beginning of every month via the so-called *Skywire Status Update Emails* including details of their last month's Skywire mainnet participation.
 * You can contact support at store.skycoin.com/pages/support
 
 ***

pkg/util/rename/rename.go

@@ -5,6 +5,7 @@ import (
 	"io"
 	"log"
 	"os"
+	"strings"
 )
 
 const crossDeviceError = "invalid cross-device link"
@@ -13,7 +14,7 @@ const crossDeviceError = "invalid cross-device link"
 // If paths are located on different drives or filesystems, os.Rename fails.
 // In that case, Rename uses a workaround by copying oldPath to newPath and removing oldPath thereafter.
 func Rename(oldPath, newPath string) error {
-	if err := os.Rename(oldPath, newPath); err == nil || err.Error() != crossDeviceError {
+	if err := os.Rename(oldPath, newPath); err == nil || !strings.Contains(err.Error(), crossDeviceError) {
 		return err
 	}