lz32/tests: sign compare fix

[Austin English]

-- 
-Austin
-------------- next part --------------
diff --git a/dlls/lz32/tests/lzexpand_main.c b/dlls/lz32/tests/lzexpand_main.c
index 91fd687..b43c9e9 100644
--- a/dlls/lz32/tests/lzexpand_main.c
+++ b/dlls/lz32/tests/lzexpand_main.c
@@ -476,6 +476,7 @@ static void test_LZRead(void)
 {
   HANDLE file;
   DWORD ret;
+  HRESULT hr;
   int cfile;
   OFSTRUCT test;
   BOOL retok;
@@ -500,8 +501,8 @@ static void test_LZRead(void)
 
   todo_wine {
      /* Wine returns the number of bytes actually read instead of an error */
-     ret = LZRead(cfile, buf, uncompressed_data_size);
-     ok(ret == LZERROR_READ, "Expected read-past-EOF to return LZERROR_READ\n");
+     hr = LZRead(cfile, buf, uncompressed_data_size);
+     ok(hr == LZERROR_READ, "Expected read-past-EOF to return LZERROR_READ\n");
   }
 
   LZClose(cfile);