objsel: Declare a variable static

[Andrew Talbot]

Changelog:
    objsel: Declare a variable static.

diff -urN a/dlls/objsel/objsel.c b/dlls/objsel/objsel.c
--- a/dlls/objsel/objsel.c	2006-05-23 13:48:24.000000000 +0100
+++ b/dlls/objsel/objsel.c	2007-01-17 21:48:28.000000000 +0000
@@ -25,7 +25,7 @@
 WINE_DEFAULT_DEBUG_CHANNEL(objsel);
 
 LONG dll_refs = 0;
-HINSTANCE hInstance;
+static HINSTANCE hInstance;
 
 /***********************************************************************
  *		DllEntryPoint