windows: revlog.lazyparser not always safe to use.
can not use on windows < nt or if win32 api not available.
%% no changes%% no changes%% uncompressed contents in repothisisatest%% uncompress our working dir copythisisatest1filesupdated,0filesmerged,0filesremoved,0filesunresolved%% uncompress our new working dir copythisisatest