Camel case new variable

Author: gRegorLove

Mf2/Parser.php

@@ -1506,7 +1506,7 @@ public function backcompat(DOMElement $el, $context = '', $isParentMf2 = false)
 			$mf1Classes = array_intersect($classes, array_keys($this->classicRootMap));
 		}
 
-		$el_has_mf2 = $this->hasRootMf2($el);
+		$elHasMf2 = $this->hasRootMf2($el);
 
 		foreach ($mf1Classes as $classname) {
 			// special handling for specific properties
@@ -1602,7 +1602,7 @@ public function backcompat(DOMElement $el, $context = '', $isParentMf2 = false)
 				}
 			}
 
-			if ( empty($context) && isset($this->classicRootMap[$classname]) && !$el_has_mf2 ) {
+			if ( empty($context) && isset($this->classicRootMap[$classname]) && !$elHasMf2 ) {
 				$this->addMfClasses($el, $this->classicRootMap[$classname]);
 			}
 		}