Changed get seperator from env variable if available

asyncmind0 · asyncmind0 · commit ca53dde1035c · 2021-10-31T11:17:09.000+11:00
diff --git a/libtmux/formats.py b/libtmux/formats.py
@@ -8,8 +8,9 @@
 """
 
 from __future__ import absolute_import, unicode_literals, with_statement
+from os import environ
 
-FORMAT_SEPERATOR = "|"
+FORMAT_SEPERATOR = environ.get("TMUX_SEPERATOR", "|")
 
 SESSION_FORMATS = [
     'session_name',
