apply more ruff fixes

Author: lkwinta

tools/file_packager.py

@@ -286,7 +286,7 @@ def generate_object_file(data_files):
       # The name of file
       {f.c_symbol_name}_name:
       .asciz "{dstpath}"
-      .size {f.c_symbol_name}_name, {len(dstpath)+1}
+      .size {f.c_symbol_name}_name, {len(dstpath) + 1}
 
       # The size of the file followed by the content itself
       {f.c_symbol_name}:
@@ -601,7 +601,6 @@ def was_seen(name):
         f.write(escape_for_makefile(dependency))
         f.write(' \\\n')
 
-
   return 0