dns/application: Changed vars in makefile to support further dest files

roles/dns/application/templates/zones.makefile

@@ -1,11 +1,11 @@
 dest:={{ zones_environment_link_name }}
-dest_name:={{ zones_environment_database_name }}
+db_name:={{ zones_environment_database_name }}
 
 zone_dirs:=$(wildcard *.*/)
 zones:=$(zone_dirs:/=)
 
 .PHONY: all
-all: $(addprefix ${dest}/,$(addsuffix /${dest_name},${zones}))
+all: $(addprefix ${dest}/,$(addsuffix /${db_name},${zones}))
 
-${dest}/%/${dest_name}: %/*.db
+${dest}/%/${db_name}: %/*.db
 	cat $(sort $^) | sed '0,/^  0$$/s//  '"$$(($$(date +%s) / 60))"'/' > "$@";