ken@titan ~/tmp
$ perl -v

This is perl 5, version 34, subversion 0 (v5.34.0) built for cygwin-thread-multi
...

ken@titan ~/tmp
$ perl pm_11137628_pkg_sep_in_string.pl
Old package separator used in string at pm_11137628_pkg_sep_in_string.pl line 6.
        (Did you mean "$user\'s" instead?)
Name "user::s" used only once: possible typo at pm_11137628_pkg_sep_in_string.pl line 6.
Use of uninitialized value $user::s in concatenation (.) or string at pm_11137628_pkg_sep_in_string.pl line 6.
...  problem ...