Fix indentation error from #24414. NFC (#24433)

Author: kripken

src/Fetch.js

@@ -201,7 +201,7 @@ function fetchCacheData(/** @type {IDBDatabase} */ db, fetch, data, onsuccess, o
 
   var fetch_attr = fetch + {{{ C_STRUCTS.emscripten_fetch_t.__attributes }}};
   var destinationPath = {{{ makeGetValue('fetch_attr', C_STRUCTS.emscripten_fetch_attr_t.destinationPath, '*') }}};
-    destinationPath ||= {{{ makeGetValue('fetch', C_STRUCTS.emscripten_fetch_t.url, '*') }}};
+  destinationPath ||= {{{ makeGetValue('fetch', C_STRUCTS.emscripten_fetch_t.url, '*') }}};
   var destinationPathStr = UTF8ToString(destinationPath);
 
   try {