Documentation/NuttXCCodingStandard.html: Another small change discouraging the practice of enclosing the value argument of 'return' statements in parentheses.

Documentation/NuttXCCodingStandard.html

@@ -87,7 +87,7 @@
       <h1><big><font color="#3c34ec">
         <i>NuttX C Coding Standard</i>
       </font></big></h1>
-      <p>Last Updated: July 5, 2019</p>
+      <p>Last Updated: July 6, 2019</p>
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@@ -2092,7 +2092,14 @@ ptr = (FAR struct somestruct_s *)value;
     As a rule of thumb, the length of a function should be limited so that it would fit on a single page (if you were to print the source code).
   </li>
   <li>
-    <b>Space after the function body</b>
+    <b>Return Statement</b>.
+    The argument of the <code>return</code> statement should <i>not</i> be enclosed in parentheses.
+    A reasonable exception is the case where the returned value argument is a complex expression and where the parentheses improve the readability of the code.
+    Such complex expressions might be Boolean expressions or expressions containing conditions.
+    Simple arithmetic computations would not be considered <i>complex</i> expressions.
+  </li>
+  <li>
+    <b>Space after the function body</b>.
     A one (and only one) blank line must follow the closing right brace of the function body.
   </li>
 </ul>
@@ -2121,7 +2128,7 @@ ptr = (FAR struct somestruct_s *)value;
             }
         }
 
-      return e / a;
+      return (e / a);
     }
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