comment that ctdb_event_script_v() is called from a forked childs

context and thus can make blocking calls

(This used to be ctdb commit b31d98281f15995ad340d2510e08e04ed46e271a)

ctdb/server/eventscript.c

@@ -25,6 +25,8 @@
 
 /*
   run the event script - varargs version
+  this function is called and run in the context of a forked child
+  which allows it to do blocking calls such as system()
  */
 static int ctdb_event_script_v(struct ctdb_context *ctdb, const char *fmt, va_list ap)
 {