Arguments to import are a list of strings naming the symbols/ names to
be imported. Any list of strings will do. The following two scriptlets
behave identically,
--------
use POSIX qw(uname write);
my $sys = (uname())[0];
write(1, $sys."\n", length($sys) + 1);
--------
--------
use POSIX 'uname', 'write';
my $sys = (uname())[0];
write(1, $sys."\n", length($sys) + 1);
--------
--------
use POSIX 'uname';
use POSIX 'write';
my $sys = (uname())[0];
write(1, $sys."\n", length($sys) + 1);
--------