"... please do not call subroutines using an ampersand. Write err3() rather than &err3()."
FYI: this is a special syntax. Calling a subroutine this way from within a subroutine has the effect of passing the (remaining) arguments to the inner sub that were passed to the outer. To wit:
# main
outer( 1, qw( A Set of Args ));
sub outer {
my $pass = shift;
&inner if $pass;
}
sub inner {
print "inner: ", join( ' ', @_ ), "\n";
}
will print:
A Set of Args
dmm
If you GIVE a man a fish you feed him for a day
But, TEACH him to fish and you feed him for a lifetime
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