Remove duplicate --version option

Author: rocky

uncompyle6/bin/uncompile.py

@@ -131,7 +131,6 @@ def usage():
     default=0,
     help="start decomplation at offset; default is 0 or the starting offset.",
 )
-@click.version_option(version=__version__)
 @click.option(
     "--stop-offset",
     "stop_offset",

uncompyle6/main.py

@@ -302,6 +302,9 @@ def main(
     for source_path in source_files:
         compiled_files.append(compile_file(source_path))
 
+    if len(compiled_files) == 0:
+        return 0, 0, 0, 0
+
     for filename in compiled_files:
         infile = osp.join(in_base, filename)
         # print("XXX", infile)