Fix some -Wsigned-compare warnings.

dlls/shlwapi/ordinal.c

@@ -576,8 +576,8 @@ HRESULT WINAPI GetAcceptLanguagesW( LPWSTR langbuf, LPDWORD buflen)
     }
     memcpy( langbuf, mystr, min(*buflen,strlenW(mystr)+1)*sizeof(WCHAR) );
 
-    if(*buflen > lstrlenW(mystr)) {
-	*buflen = lstrlenW(mystr);
+    if(*buflen > strlenW(mystr)) {
+	*buflen = strlenW(mystr);
 	retval = S_OK;
     } else {
 	*buflen = 0;

dlls/shlwapi/url.c

@@ -459,7 +459,8 @@ HRESULT WINAPI UrlCanonicalizeW(LPCWSTR pszUrl, LPWSTR pszCanonicalized,
     HRESULT hr = S_OK;
     DWORD EscapeFlags;
     LPWSTR lpszUrlCpy, wk1, wk2, mp, root;
-    INT nLen, nByteLen, state;
+    INT nByteLen, state;
+    DWORD nLen;
 
     TRACE("(%s %p %p 0x%08lx)\n", debugstr_w(pszUrl), pszCanonicalized,
 	  pcchCanonicalized, dwFlags);