fixes options for ansible pull

* remove requirement for host patterns, use the defaults
 * require destination directory (None in cwd is not a good default)
 * fixed usage messages
 * updated default inventory to use , and not deprecated :

lib/ansible/cli/pull.py

@@ -50,7 +50,7 @@ class PullCLI(CLI):
         ''' create an options parser for bin/ansible '''
 
         self.parser = CLI.base_parser(
-            usage='%prog <host-pattern> [options]',
+            usage='%prog  -d <destdir> -U <repository> [options]',
             connect_opts=True,
             vault_opts=True,
             runtask_opts=True,
@@ -91,8 +91,8 @@ class PullCLI(CLI):
         if not self.options.url:
             raise AnsibleOptionsError("URL for repository not specified, use -h for help")
 
-        if len(self.args) != 1:
-            raise AnsibleOptionsError("Missing target hosts")
+        if not self.options.dest:
+            raise AnsibleOptionsError("Destination directory for checkout not specified, use -h for help")
 
         if self.options.module_name not in self.SUPPORTED_REPO_MODULES:
             raise AnsibleOptionsError("Unsuported repo module %s, choices are %s" % (self.options.module_name, ','.join(self.SUPPORTED_REPO_MODULES)))
@@ -114,7 +114,7 @@ class PullCLI(CLI):
         # Now construct the ansible command
         node = platform.node()
         host = socket.getfqdn()
-        limit_opts = 'localhost:%s:127.0.0.1' % ':'.join(set([host, node, host.split('.')[0], node.split('.')[0]]))
+        limit_opts = 'localhost,%s,127.0.0.1' % ','.join(set([host, node, host.split('.')[0], node.split('.')[0]]))
         base_opts = '-c local "%s"' % limit_opts
         if self.options.verbosity > 0:
             base_opts += ' -%s' % ''.join([ "v" for x in range(0, self.options.verbosity) ])