Implement suggestion from code review (avoid empty function body in the code examples)

Author: rodrigoprimo

src/Standards/Generic/Docs/Functions/OpeningFunctionBraceKernighanRitchieStandard.xml

@@ -1,21 +1,23 @@
 <documentation title="Opening Function Brace Kerninghan Ritchie">
     <standard>
     <![CDATA[
-    The function opening brace must be on the same line as the function declaration closing
-    parenthesis, with exactly one space between them, and must be the last content on the line.
+    The function opening brace must be on the same line as the function declaration, with exactly
+    one space between them, and must be the last content on the line.
     ]]>
     </standard>
     <code_comparison>
         <code title="Valid: Opening brace on the same line.">
         <![CDATA[
 function fooFunction($arg1, $arg2 = '')<em> {</em>
+    // Do something.
 }
         ]]>
         </code>
         <code title="Invalid: Opening brace on the next line.">
         <![CDATA[
 function fooFunction($arg1, $arg2 = '')
 <em>{</em>
+    // Do something.
 }
         ]]>
         </code>