Server/py: Make executable with #!/usr/bin/python3.

diff --git a/plomrogue-server.py b/plomrogue-server.py
index a0210126188f3b67e91321441153e7f51fcce1c0..acbb14199fd67a2ebf465f30686ed4c71a73481c 100755 (executable)
--- a/plomrogue-server.py
+++ b/plomrogue-server.py
@@ -1,3 +1,4 @@
+#!/usr/bin/python3
 import argparse
 import errno
 import os