message: Backticks around key in error message
diff: @@ -492,10 +492,10 @@ export class ModeHandler implements vscode.Disposable, IModeHandler {
  // If this is a ForceStopRemappingError rethrow it until it gets to the remapper
  throw e;
  } else if (e instanceof Error) {
  - e.message = `Failed to handle key=${key}. ${e.message}`;
  + e.message = `Failed to handle key \`${key}\`: ${e.message}`;
  throw e;
  } else {
  - throw new Error(`Failed to handle key=${key} due to an unknown error.`);
  + throw new Error(`Failed to handle key \`${key}\` due to an unknown error.`);
  }
  }
  