12:34:12 hydra-server.1 | Use of uninitialized value $s in substitution (s///) at /home/vin/workspace/vcs/hydra/src/script/../lib/Hydra/Helper/CatalystUtils.pm line 283, <$fh> line 1.
7NHC3ROEN7FKUCLWQMGC46RHKSVUKSZI6GDLVP4GC4CCLM3Q63LAC
FPK5LF53CFUEKFYJ3IYXT4UTVC6IITWJOCFATMC4PLHEUP5SIEAAC
LBNVQXUBEZ45SOTGVXK5UEZXIAIZTJLWZNUYFI4JZ6J65N3KPDVQC
my $s = shift;
my $s = shift // "";