Fix method doc signatures for multiline required parameters (#374)

* Fix method doc signatures for multiline required parameters.

Existing doc generator failed to recognize parameters as required when parameter descriptions
extended over more than one line. Besides presenting incorrect information, resulting
inconsistencies broke checks for automated sample generation.

* Regen docs
diff --git a/docs/dyn/firebaserules_v1.projects.rulesets.html b/docs/dyn/firebaserules_v1.projects.rulesets.html
index dc882f0..11a8b34 100644
--- a/docs/dyn/firebaserules_v1.projects.rulesets.html
+++ b/docs/dyn/firebaserules_v1.projects.rulesets.html
@@ -75,23 +75,23 @@
 <h1><a href="firebaserules_v1.html">Firebase Rules API</a> . <a href="firebaserules_v1.projects.html">projects</a> . <a href="firebaserules_v1.projects.rulesets.html">rulesets</a></h1>
 <h2>Instance Methods</h2>
 <p class="toc_element">
-  <code><a href="#create">create(name=None, body, x__xgafv=None)</a></code></p>
+  <code><a href="#create">create(name, body, x__xgafv=None)</a></code></p>
 <p class="firstline">Create a `Ruleset` from `Source`.</p>
 <p class="toc_element">
-  <code><a href="#delete">delete(name=None, x__xgafv=None)</a></code></p>
+  <code><a href="#delete">delete(name, x__xgafv=None)</a></code></p>
 <p class="firstline">Delete a `Ruleset` by resource name.</p>
 <p class="toc_element">
-  <code><a href="#get">get(name=None, x__xgafv=None)</a></code></p>
+  <code><a href="#get">get(name, x__xgafv=None)</a></code></p>
 <p class="firstline">Get a `Ruleset` by name including the full `Source` contents.</p>
 <p class="toc_element">
-  <code><a href="#list">list(name=None, pageSize=None, filter=None, pageToken=None, x__xgafv=None)</a></code></p>
+  <code><a href="#list">list(name, pageSize=None, filter=None, pageToken=None, x__xgafv=None)</a></code></p>
 <p class="firstline">List `Ruleset` metadata only and optionally filter the results by `Ruleset`</p>
 <p class="toc_element">
   <code><a href="#list_next">list_next(previous_request, previous_response)</a></code></p>
 <p class="firstline">Retrieves the next page of results.</p>
 <h3>Method Details</h3>
 <div class="method">
-    <code class="details" id="create">create(name=None, body, x__xgafv=None)</code>
+    <code class="details" id="create">create(name, body, x__xgafv=None)</code>
   <pre>Create a `Ruleset` from `Source`.
 
 The `Ruleset` is given a unique generated name which is returned to the
@@ -152,7 +152,7 @@
 </div>
 
 <div class="method">
-    <code class="details" id="delete">delete(name=None, x__xgafv=None)</code>
+    <code class="details" id="delete">delete(name, x__xgafv=None)</code>
   <pre>Delete a `Ruleset` by resource name.
 
 If the `Ruleset` is referenced by a `Release` the operation will fail.
@@ -182,7 +182,7 @@
 </div>
 
 <div class="method">
-    <code class="details" id="get">get(name=None, x__xgafv=None)</code>
+    <code class="details" id="get">get(name, x__xgafv=None)</code>
   <pre>Get a `Ruleset` by name including the full `Source` contents.
 
 Args:
@@ -217,7 +217,7 @@
 </div>
 
 <div class="method">
-    <code class="details" id="list">list(name=None, pageSize=None, filter=None, pageToken=None, x__xgafv=None)</code>
+    <code class="details" id="list">list(name, pageSize=None, filter=None, pageToken=None, x__xgafv=None)</code>
   <pre>List `Ruleset` metadata only and optionally filter the results by `Ruleset`
 name.