Update setup.py

Author: timthelion

setup.py

@@ -10,7 +10,7 @@
 
 version = subprocess.check_output(
     ["git", "describe", "--abbrev=0", "--tags", "--always"]
-).decode("utf-8").strip() + ".dev" + datetime.datetime.now().strftime("%Y-%m-%d-%H-%M-%S")
+).decode("utf-8").strip() + ".dev" + datetime.datetime.now().strftime("%Y%m%d%H%M%S")
 
 setup(
     name="django-import-export-celery",