comctl32/tests: Make cbt_hook_proc() static.

[Francois Gouget]

---
 dlls/comctl32/tests/toolbar.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/dlls/comctl32/tests/toolbar.c b/dlls/comctl32/tests/toolbar.c
index 474e5ef..a508746 100644
--- a/dlls/comctl32/tests/toolbar.c
+++ b/dlls/comctl32/tests/toolbar.c
@@ -1776,7 +1776,7 @@ static LRESULT WINAPI toolbar_subclass_proc(HWND hwnd, UINT msg, WPARAM wParam,
     return CallWindowProcA(oldproc, hwnd, msg, wParam, lParam);
 }
 
-LRESULT CALLBACK cbt_hook_proc(int code, WPARAM wParam, LPARAM lParam)
+static LRESULT CALLBACK cbt_hook_proc(int code, WPARAM wParam, LPARAM lParam)
 {
     if (code == HCBT_CREATEWND)
     {
-- 
1.7.9