Add missing #include <time.h> (thanks Christian Ehrlicher)

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

ChangeLog

+2008-01-29  Christian Ehrlicher <Ch.Ehrlicher@gmx.de>
+	* libvncserver/rfbserver.c: add missing #include <time.h>
+
 2008-01-28  Noriaki Yamazaki <micro-vnc@ias.hitachi-system.co.jp>
 	*  rfb/rfbproto.h, libvncserver/rfbserver.c, libvncserver/scale.c,
 	   libvncserver/zrle.c, libvncserver/zrleencodetemplate.c,

libvncserver/rfbserver.c

@@ -74,6 +74,8 @@
 #include <dirent.h>
 /* errno */
 #include <errno.h>
+/* strftime() */
+#include <time.h>
 
 #ifdef __MINGW32__
 static int compat_mkdir(const char *path, int mode)