$ ./op_bench1_mod2.pl
Illegal character in prototype for main::net1 : $rstr, $out_fh = *STDOUT at ./op_bench1_mod2.pl line 48.
Illegal character after '_' in prototype for main::net1 : $rstr, $out_fh = *STDOUT at ./op_bench1_mod2.pl line 48.
Illegal character in prototype for main::net2 : $rstr, $out_fh = *STDOUT at ./op_bench1_mod2.pl line 58.
Illegal character after '_' in prototype for main::net2 : $rstr, $out_fh = *STDOUT at ./op_bench1_mod2.pl line 58.
Illegal character in prototype for main::hau1 : $rstr, $out_fh = *STDOUT at ./op_bench1_mod2.pl line 71.
Illegal character after '_' in prototype for main::hau1 : $rstr, $out_fh = *STDOUT at ./op_bench1_mod2.pl line 71.
Illegal character in prototype for main::ner1 : $rstr, $out_fh = *STDOUT at ./op_bench1_mod2.pl line 81.
Illegal character after '_' in prototype for main::ner1 : $rstr, $out_fh = *STDOUT at ./op_bench1_mod2.pl line 81.
Illegal character in prototype for main::ner2 : $rstr, $out_fh = *STDOUT at ./op_bench1_mod2.pl line 89.
Illegal character after '_' in prototype for main::ner2 : $rstr, $out_fh = *STDOUT at ./op_bench1_mod2.pl line 89.
Global symbol "$rstr" requires explicit package name (did you forget to declare "my $rstr"?) at ./op_bench1_mod2.pl line 49.
Global symbol "$out_fh" requires explicit package name (did you forget to declare "my $out_fh"?) at ./op_bench1_mod2.pl line 52.
Global symbol "$rstr" requires explicit package name (did you forget to declare "my $rstr"?) at ./op_bench1_mod2.pl line 59.
Global symbol "$out_fh" requires explicit package name (did you forget to declare "my $out_fh"?) at ./op_bench1_mod2.pl line 65.
Global symbol "$rstr" requires explicit package name (did you forget to declare "my $rstr"?) at ./op_bench1_mod2.pl line 72.
Global symbol "$out_fh" requires explicit package name (did you forget to declare "my $out_fh"?) at ./op_bench1_mod2.pl line 75.
Global symbol "$rstr" requires explicit package name (did you forget to declare "my $rstr"?) at ./op_bench1_mod2.pl line 82.
Global symbol "$out_fh" requires explicit package name (did you forget to declare "my $out_fh"?) at ./op_bench1_mod2.pl line 84.
Global symbol "$rstr" requires explicit package name (did you forget to declare "my $rstr"?) at ./op_bench1_mod2.pl line 90.
Global symbol "$out_fh" requires explicit package name (did you forget to declare "my $out_fh"?) at ./op_bench1_mod2.pl line 92.
./op_bench1_mod2.pl has too many errors.