Fix of the description in pubspec.yaml

main.dart

 import "dart:io";
 import "dart:async";
 
 import '../discovery_api_dart_client_generator/lib/generator.dart';
 import 'package:google_discovery_v1_api/discovery_v1_api_client.dart';
 import 'package:yaml/yaml.dart';
 
 class Package {
   final String name;
   final List<String> apis;
@@ skipping 62 matching lines @@
         }
         var licenseFile;
         if (values['license'] != null) {
           licenseFile = Platform.script.resolve(values['license']).path;
         }
 
 
         // Generate package description.
         var apiDescriptions = [];
         var sb = new StringBuffer()
-            ..write('Auto-generated client libraries for accessing '
-                    'the following APIs:');
+            ..write('"Auto-generated client libraries for accessing '
+                    'the following APIs:\\n');
         items.forEach((DirectoryListItems apiDescription) {
           if (apis.contains(apiDescription.id)) {
-            sb..writeln('  ')
+            sb..writeln('')
+                ..write('  ')
                 ..write(apiDescription.id)
                 ..write(' - ')
-                ..write(apiDescription.description);
+                ..write(apiDescription.description)
+                ..write('\\n');
             apiDescriptions.add(apiDescription);
           }
         });
+        sb.write('"');
 
         // Generate the README.md file content.
         var readme = generateReadme(readmeFile, apiDescriptions);
 
         // Read the LICENSE
         var license = new File(licenseFile).readAsStringSync();
 
         // Create package description with pubspec.yaml information.
         var pubspec = new Pubspec(
             name, version, sb.toString(), author: author, homepage: homepage);
@@ skipping 46 matching lines @@
             .writeAsStringSync(package.readme);
         if (package.license != null) {
           new File('$generatedApisDir/$name/LICENSE')
               .writeAsStringSync(package.license);
         }
       });
       print('DONE');
     });
   });
 }