Fix ESLint error

Author: octogonz

repo-scripts/repo-toolbox/src/start.ts

@@ -6,4 +6,4 @@ import { ToolboxCommandLine } from './ToolboxCommandLine';
 console.log('repo-toolbox\n');
 
 const commandLine: ToolboxCommandLine = new ToolboxCommandLine();
-commandLine.execute();
+commandLine.execute().catch(console.error); // CommandLineParser.execute() should never reject the promise