make exit code logging more robust

node_modules/vfs-local/localfs.js

@@ -1827,9 +1827,11 @@ module.exports = function setup(fsOptions) {
                 }
                 else if (options.command) {
                     args.push(BASH + " -l -c '"
-                        + options.command.replace(/'/g, "'\\''")
-                        + '; printf "\\e[01;30m\\n\\nProcess exited with code: $?\\e[0m\\n"'
-                        + "; sleep 0.1;'");
+                        + (
+                            'trap \'printf "\\e[01;30m\\n\\nProcess exited with code: $?\\e[0m\\n"\' EXIT\n'
+                            + options.command
+                        ).replace(/'/g, "'\\''")
+                        + "'");
                 }
                 
                 args.push(