Tox passenv does not allow whitespaces on a single line

moggers87 · claudep · commit ae0e3d344c8e · 2023-01-15T16:51:43.000+01:00
diff --git a/tox.ini b/tox.ini
@@ -27,7 +27,9 @@ VARIANT =
     custom_user: custom_user
 
 [testenv]
-passenv = HOME DISPLAY
+passenv =
+    HOME
+    DISPLAY
 setenv =
     PYTHONDONTWRITEBYTECODE=1
     PYTHONWARNINGS=always
