Index: vl.c
===================================================================
--- vl.c	(revision 6629)
+++ vl.c	(working copy)
@@ -4072,7 +4079,8 @@
            "-old-param      old param mode\n"
 #endif
            "-tb-size n      set TB size\n"
-           "-incoming p     prepare for incoming migration, listen on port p\n"
+           "-incoming [tcp:<port>|exec <external program>]\n"
+           "                prepare for incoming migration using given protocol or tool\n"
            "\n"
            "During emulation, the following keys are useful:\n"
            "ctrl-alt-f      toggle full screen\n"