fix spelling

lib/oauthutil/oauthutil.go

@@ -154,7 +154,7 @@ type TokenSource struct {
 }
 
 // If token has expired then first try re-reading it from the config
-// file in case a concurrently runnng rclone has updated it already
+// file in case a concurrently running rclone has updated it already
 func (ts *TokenSource) reReadToken() bool {
 	tokenString, err := config.FileGetFresh(ts.name, config.ConfigToken)
 	if err != nil {

lib/rest/rest_header_reset.go

@@ -9,7 +9,7 @@ import (
 // ClientWithHeaderReset makes a new http client which resets the
 // headers passed in on redirect
 //
-// This is now unecessary with go1.8 so becomes a no-op
+// This is now unnecessary with go1.8 so becomes a no-op
 func ClientWithHeaderReset(c *http.Client, headers map[string]string) *http.Client {
 	return c
 }