call set_loggers() and pass sys.argv to main

bin/freqtrade

@@ -1,4 +1,7 @@
 #!/usr/bin/env python3
 
-from freqtrade.main import main
+import sys
-main()
+
+from freqtrade.main import main, set_loggers
+set_loggers()
+main(sys.argv[1:])