[CLEANUP] Avoid Hungarian notation for size (part 2)

Part of #756

Author: oliverklee

src/Value/Size.php

@@ -132,11 +132,11 @@ private static function getSizeUnits()
         if (!\is_array(self::$SIZE_UNITS)) {
             self::$SIZE_UNITS = [];
             foreach (\array_merge(self::ABSOLUTE_SIZE_UNITS, self::RELATIVE_SIZE_UNITS, self::NON_SIZE_UNITS) as $val) {
-                $iSize = \strlen($val);
-                if (!isset(self::$SIZE_UNITS[$iSize])) {
-                    self::$SIZE_UNITS[$iSize] = [];
+                $size = \strlen($val);
+                if (!isset(self::$SIZE_UNITS[$size])) {
+                    self::$SIZE_UNITS[$size] = [];
                 }
-                self::$SIZE_UNITS[$iSize][\strtolower($val)] = $val;
+                self::$SIZE_UNITS[$size][\strtolower($val)] = $val;
             }
 
             \krsort(self::$SIZE_UNITS, SORT_NUMERIC);