remove profile dependency

rig/Makefile

@@ -80,7 +80,7 @@ deps:                          ## install the toolchain  [core|dev]  (default de
 # The one-file versions of rig's tools, one folder per profile, for machines the
 # full rig is not going to. Generated from rig as it is, never edited by hand;
 # `check` is what selftest runs to catch a kit left behind by a change to rig.
-standalone:                    ## generate standalone/<profile>/ kits  [write|check]  (default write)
+standalone:                    ## single-file kits  [write|check|export DIR]  (default write)
 	bash ctrl/standalone.sh $(or $(ARGS),write)
 
 deps-image:                    ## build the installer image  [full]