Bug Fixes --------- - Fix an issue that command "cmd /c script -c cmd" crashes if it is issued in console of Windows 7. - Fix killpg failing because the exec'ing as well as the exec'ed process are not in the pidlist for a brief moment. Addresses: https://cygwin.com/pipermail/cygwin/2022-May/251479.html - Fix mknod (64-bit only), whose definition didn't match its prototype. Addresses: https://cygwin.com/pipermail/cygwin-developers/2022-May/012589.html