Docs: mention -k restart in command line usage

diff --git a/src/main.cc b/src/main.cc
index 479db26ee2718835a21a472551fff722dce01472..ba13a2eec38de70f0d0ff676b4b7d76d18a6a97a 100644 (file)
--- a/src/main.cc
+++ b/src/main.cc
@@ -292,7 +292,11 @@ usage(void)
 #if USE_WIN32_SERVICE
             "       -i        Installs as a Windows Service (see -n option).\n"
 #endif
-            "       -k reconfigure|rotate|shutdown|interrupt|kill|debug|check|parse\n"
+            "       -k reconfigure|rotate|shutdown|"
+#ifdef SIGTTIN
+            "restart|"
+#endif
+            "interrupt|kill|debug|check|parse\n"
             "                 Parse configuration file, then send signal to \n"
             "                 running copy (except -k parse) and exit.\n"
             "       -n name   Specify service name to use for service operations\n"