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/classroom_v1.userProfiles.html b/docs/dyn/classroom_v1.userProfiles.html
index 7eefd0e..8a1a8cf 100644
--- a/docs/dyn/classroom_v1.userProfiles.html
+++ b/docs/dyn/classroom_v1.userProfiles.html
@@ -85,11 +85,11 @@
 <p class="firstline">Returns the guardians Resource.</p>
 
 <p class="toc_element">
-  <code><a href="#get">get(userId=None, x__xgafv=None)</a></code></p>
+  <code><a href="#get">get(userId, x__xgafv=None)</a></code></p>
 <p class="firstline">Returns a user profile.</p>
 <h3>Method Details</h3>
 <div class="method">
-    <code class="details" id="get">get(userId=None, x__xgafv=None)</code>
+    <code class="details" id="get">get(userId, x__xgafv=None)</code>
   <pre>Returns a user profile.
 
 This method returns the following error codes: