Style & typo.

Author: seanmorris

tools/file_packager.py

@@ -987,16 +987,17 @@ def generate_js(data_target, data_files, metadata):
               if (!done) {
                 chunks.push(value);
                 loaded += value.length;
-                Module['dataFileDownloads'][packageName] = Module['dataFileDownloads'][packageName] ?? {};
+
+                Module['dataFileDownloads'][packageName] ??= {};
                 Module['dataFileDownloads'][packageName].loaded = loaded;
                 Module['dataFileDownloads'][packageName].total = size;
 
                 let totalLoaded = 0;
                 let totalSize = 0;
 
-                for (const dowload of Object.values(Module['dataFileDownloads'])) {
-                  totalLoaded += dowload.loaded;
-                  totalSize += dowload.total;
+                for (const download of Object.values(Module['dataFileDownloads'])) {
+                  totalLoaded += download.loaded;
+                  totalSize += download.total;
                 }
 
                 Module['setStatus']?.(`Downloading data... (${totalLoaded}/${totalSize})`);