set default encoding to utf-8

If encoding is not set (run through an executable made by pyinstaller), set
it to utf-8.

agkyra/syncer/utils.py

@@ -26,7 +26,7 @@ logger = logging.getLogger(__name__)
 
 from agkyra.syncer.common import OBJECT_DIRSEP
 
-ENCODING = sys.getfilesystemencoding() or sys.getdefaultencoding()
+ENCODING = sys.getfilesystemencoding() or 'UTF-8'
 PLATFORM = sys.platform
 NODE = platform.node()