old_contents: // The module 'vscode' contains the VS Code extensibility API
  // Import the module and reference it with the alias vscode in your code below
  var vscode = require('vscode');
  
  // this method is called when your extension is activated
  // your extension is activated the very first time the command is executed
  function activate(context) {
      // The command has been defined in the package.json file
      // Now provide the implementation of the command with  registerCommand
      // The commandId parameter must match the command field in package.json
      var disposable = vscode.commands.registerCommand('extension.devDocs', function () {
          // The code you place here will be executed every time your command is executed
          var editor = vscode.window.activeTextEditor;
          if (!editor) {
              return; // No open text editor
          }
  
          var url = 'https://devdocs.io/';
          var language = editor.document.languageId;
          var selection = editor.selection;
          var text = editor.document.getText(selection);
  
          if (text.length == 0) return;
          if (text.indexOf('\n') >= 0) {
            vscode.window.showErrorMessage('Multiline selection not allowed for your security.');
            return;
          }
  
          vscode.commands.executeCommand('vscode.open', vscode.Uri.parse(url + language + "#q=" + text),1 );
      });
  
      context.subscriptions.push(disposable);
  }
  exports.activate = activate;
  
  // this method is called when your extension is deactivated
  function deactivate() {
  }
  exports.deactivate = deactivate;
new_contents: // The module 'vscode' contains the VS Code extensibility API
  // Import the module and reference it with the alias vscode in your code below
  var vscode = require('vscode');
  
  // this method is called when your extension is activated
  // your extension is activated the very first time the command is executed
  function activate(context) {
      // The command has been defined in the package.json file
      // Now provide the implementation of the command with  registerCommand
      // The commandId parameter must match the command field in package.json
      var disposable = vscode.commands.registerCommand('extension.devDocs', function () {
          // The code you place here will be executed every time your command is executed
          var editor = vscode.window.activeTextEditor;
          if (!editor) {
              return; // No open text editor
          }
  
          var url = 'https://devdocs.io/';
          var language = editor.document.languageId;
          var selection = editor.selection;
          var text = editor.document.getText(selection);
  
          if (text.length == 0) return;
          if (text.indexOf('\n') >= 0) {
            vscode.window.showErrorMessage('Multiline selection not allowed for your security.');
            return;
          }
  
          vscode.commands.executeCommand('vscode.open', vscode.Uri.parse(url + "#q=" + language + " " + text), 1);
      });
  
      context.subscriptions.push(disposable);
  }
  exports.activate = activate;
  
  // this method is called when your extension is deactivated
  function deactivate() {
  }
  exports.deactivate = deactivate;
  
subject: Fix query string formatting