add FROM_ADDRESS to the usual variables

diff --git a/bin/plc-config-tty b/bin/plc-config-tty
index a8d8dea..91c5a28 100755 (executable)
--- a/bin/plc-config-tty
+++ b/bin/plc-config-tty
@@ -24,6 +24,7 @@ usual_variables = [
     "PLC_ROOT_PASSWORD",
     "PLC_MAIL_ENABLED",
     "PLC_MAIL_SUPPORT_ADDRESS",
+    "PLC_MAIL_FROM_ADDRESS",
     "PLC_DB_HOST",
     "PLC_API_HOST",
     "PLC_WWW_HOST",