[vte] lib: Add missing include

[Christian Persch <chpe src gnome org>]

commit 8bc51bbfe464727d5fab8d6b5ef83087c286ba90
Author: Christian Persch <chpe gnome org>
Date:   Sat Mar 19 16:07:51 2016 +0100

    lib: Add missing include
    
    Should fix the build on build.g.o.

 src/vtegtk.cc |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/vtegtk.cc b/src/vtegtk.cc
index eb955e5..ebfae07 100644
--- a/src/vtegtk.cc
+++ b/src/vtegtk.cc
@@ -54,6 +54,7 @@
 #include "vteaccess.h"
 
 #include "vtegtk.hh"
+#include "vteregexinternal.hh"
 
 #if !GLIB_CHECK_VERSION(2, 42, 0)
 #define G_PARAM_EXPLICIT_NOTIFY 0