Added a few missing stdarg.h includes.

programs/regedit/main.h

@@ -77,6 +77,8 @@ extern TCHAR szChildClass[];
 /*******************************************************************************
  * Dynamically load all things that depend on user32.dll
  */
+#include <stdarg.h>
+
 #include "windef.h"
 #include "winbase.h"
 #include "wingdi.h"

programs/wineconsole/curses.c

@@ -33,6 +33,7 @@
 #include "wine/port.h"
 
 #include <stdio.h>
+#include <stdarg.h>
 #include <stdlib.h>
 #ifdef HAVE_CURSES_H
 #include <curses.h>

programs/winedbg/gdbproxy.c

@@ -31,6 +31,7 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <signal.h>
+#include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <sys/poll.h>

server/registry.c

@@ -33,6 +33,7 @@
 #include <fcntl.h>
 #include <limits.h>
 #include <stdio.h>
+#include <stdarg.h>
 #include <string.h>
 #include <stdlib.h>
 #include <sys/stat.h>