#404 Fix for mixed comparison of signed and unsigned expressions [Werror=sign-compare]

[Anton Samsonov]

A cosmetic change to CPP/7zip/Archive/Wim/WimIn.cpp on line 680 is needed:

@@ -677,7 +677,7 @@ HRESULT CDatabase::ParseDirItem(size_t pos, int parent)
       const UInt64 len2 = Get64(p2);
-      if ((len2 & align) != 0 || rem2 < len2 || len2 < (IsOldVersion ? 0x18 : 0x28))
+      if ((len2 & align) != 0 || rem2 < len2 || len2 < (UInt64)(IsOldVersion ? 0x18 : 0x28))^M
         return S_FALSE;

to fix compiler warning (treated as error) about comparing an unsigned variable len2 to a signed numeric literal.

[Igor Pavlov]

Ok.