[zendframework/zendframework#4679] CS fixes

- trailing whitespace

test/Helper/HeadMetaTest.php

@@ -529,19 +529,19 @@ public function testConditional()
         $this->assertRegExp("|^<!--\[if lt IE 7\]>|", $html);
         $this->assertRegExp("|<!\[endif\]-->$|", $html);
     }
-    
+
     public function testConditionalNoIE()
     {
         $html = $this->helper->appendHttpEquiv('foo', 'bar', array('conditional' => '!IE'))->toString();
-        
+
         $this->assertContains('<!--[if !IE]><!--><', $html);
         $this->assertContains('<!--<![endif]-->', $html);
     }
 
     public function testConditionalNoIEWidthSpace()
     {
         $html = $this->helper->appendHttpEquiv('foo', 'bar', array('conditional' => '! IE'))->toString();
-        
+
         $this->assertContains('<!--[if ! IE]><!--><', $html);
         $this->assertContains('<!--<![endif]-->', $html);
     }

test/Helper/HeadScriptTest.php

@@ -402,7 +402,7 @@ public function testConditionalScriptNoIEWidthSpace()
         $this->assertContains('<!--[if ! IE]><!--><', $test);
         $this->assertContains('<!--<![endif]-->', $test);
     }
-    
+
     /**
      * @issue ZF-5435
      */

test/Helper/HeadStyleTest.php

@@ -372,7 +372,7 @@ public function testConditionalScriptNoIE()
         $this->assertContains('<!--[if !IE]><!--><', $test);
         $this->assertContains('<!--<![endif]-->', $test);
     }
-    
+
     public function testConditionalScriptNoIEWidthSpace()
     {
         $this->helper->appendStyle('