winex11.drv: Fix typo that confuses winapi_check.

dlls/winex11.drv/opengl.c

@@ -1478,7 +1478,7 @@ BOOL WINAPI X11DRV_wglShareLists(HGLRC hglrc1, HGLRC hglrc2) {
     return FALSE;
 }
 
-static BOOL internal_wglUseFontBitmaps(HDC hdc, DWORD first, DWORD count, DWORD listBase, DWORD (WINAPI GetGlyphOutline_ptr)(HDC,UINT,UINT,LPGLYPHMETRICS,DWORD,LPVOID,const MAT2*))
+static BOOL internal_wglUseFontBitmaps(HDC hdc, DWORD first, DWORD count, DWORD listBase, DWORD (WINAPI *GetGlyphOutline_ptr)(HDC,UINT,UINT,LPGLYPHMETRICS,DWORD,LPVOID,const MAT2*))
 {
      /* We are running using client-side rendering fonts... */
      GLYPHMETRICS gm;