Replace types string with str.

Uses command:

    ag -l 'type ([^:]+): string' | \
        xargs gsed -r -i.bak -e 's/type ([^:]+): string/type \1: str/g'

Note: [-r for gsed (GNU sed) is needed for group
matching](http://superuser.com/a/336819/125262).

Author: tswast

packages/google-cloud-resource-manager/google/cloud/resource_manager/client.py

@@ -63,7 +63,7 @@ def new_project(self, project_id, name=None, labels=None):
         :type project_id: str
         :param project_id: The ID for this project.
 
-        :type name: string
+        :type name: str
         :param name: The display name of the project.
 
         :type labels: dict

packages/google-cloud-resource-manager/google/cloud/resource_manager/project.py

@@ -39,13 +39,13 @@ class Project(object):
     See:
     https://cloud.google.com/resource-manager/reference/rest/v1beta1/projects
 
-    :type project_id: string
+    :type project_id: str
     :param project_id: The globally unique ID of the project.
 
     :type client: :class:`google.cloud.resource_manager.client.Client`
     :param client: The Client used with this project.
 
-    :type name: string
+    :type name: str
     :param name: The display name of the project.
 
     :type labels: dict