execAndWaitStderrAsString method
Calls execAndWaitStderrAsString and returns Output.asString.
Implementation
Future<String?> execAndWaitStderrAsString(String command, List<String> args,
{bool trim = false, int? desiredExitCode}) async {
var output = await execAndWaitStderr(command, args,
desiredExitCode: desiredExitCode);
return _waitOutputAsString(output, trim);
}