Do not depend on the 'shp2pgsql' when you reset the database
When you import some data (e.g. GTFS) with the option '-R' to reset some tempus specific schemas from the database, you check if the command 'shp2pgsql' can be found on the system (via the ResetImporter which derives from ShpImporter). It's not necessary to depend on the ShpImport to reset data.