Added strict/warnings to test files.

Yes, SO late! I'm embarrassed... ;)

t/Cond.t

 #!/usr/bin/perl
+use strict;
+use warnings;
 use Test::More;
 
 use lib 'lib';

t/Repo.t

 #!/usr/bin/perl
+use strict;
+use warnings;
 use Test::More;
 
 use lib 'lib';

t/Slave.t

 #!/usr/bin/perl
+use strict;
+use warnings;
 use Test::More;
 
 use lib 'lib';