build: Add dselect methods directory to PERL5LIB in run-script

run-script

@@ -7,7 +7,7 @@ top_srcdir=`dirname $0`
 cd "$top_srcdir"
 
 # Set up the environment, to use local perl modules and data files.
-export PERL5LIB=`pwd`/scripts
+export PERL5LIB=`pwd`/scripts:`pwd`/dselect/methods
 export DPKG_DATADIR=`pwd`
 
 exec "$@"