itss: Constify a variable

[Andrew Talbot]

Changelog:
    itss: Constify a variable.

diff -urN a/dlls/itss/moniker.c b/dlls/itss/moniker.c
--- a/dlls/itss/moniker.c	2006-12-28 14:19:56.000000000 +0000
+++ b/dlls/itss/moniker.c	2007-02-14 18:52:23.000000000 +0000
@@ -347,7 +347,7 @@
     ITS_IMonikerImpl_IsSystemMoniker
 };
 
-static HRESULT ITS_IMoniker_create( IMoniker **ppObj, LPWSTR name, DWORD n )
+static HRESULT ITS_IMoniker_create( IMoniker **ppObj, LPCWSTR name, DWORD n )
 {
     ITS_IMonikerImpl *itsmon;
     DWORD sz;