Fix: typo
Corrected "eror" to "error" on line 331.
@@ -328,7 +328,7 @@ func (a *App) RunContext(ctx context.Context, arguments []string) (err error) {
// RunAndExitOnError calls .Run() and exits non-zero if an error was returned
//
// Deprecated: instead you should return an error that fulfills cli.ExitCoder
-// to cli.App.Run. This will cause the application to exit with the given eror
+// to cli.App.Run. This will cause the application to exit with the given error
// code in the cli.ExitCoder
func (a *App) RunAndExitOnError() {
if err := a.Run(os.Args); err != nil {
