00example, bootloader, install2: drop sub/main

sub/main subprofile should not be requested directly
as documented in its README but rather via use/repo/main;
let's fix this discrepancy and check that no regressions
come hurling down.

features.in/00example/config.mk

@@ -8,6 +8,6 @@
 #
 # for somewhat more involved example, see syslinux feature
 
-use/00example: sub/main use/anotherfeature
+use/00example: use/repo/main use/anotherfeature
 	@$(call add_feature)
 	@$(call add,MAIN_PACKAGES,hello)

features.in/bootloader/config.mk

@@ -4,7 +4,7 @@
 #       the last different one wins
 # - remember .base if adding yet another *_PACKAGES
 
-use/bootloader: use/install2 sub/main
+use/bootloader:
 	@$(call add_feature)
 	@$(call add,BASE_PACKAGES,alterator-$$(BASE_BOOTLOADER))
 

features.in/install2/config.mk

@@ -2,7 +2,8 @@
 
 +installer: use/install2/full; @:
 
-use/install2: use/stage2 sub/stage2@install2 use/metadata use/cleanup/installer
+use/install2: use/stage2 sub/stage2@install2 use/metadata \
+	use/cleanup/installer use/bootloader
 	@$(call add_feature)
 	@$(call try,INSTALLER,altlinux-generic)	# might be replaced later
 	@$(call add,INSTALL2_PACKAGES,installer-distro-$$(INSTALLER)-stage2)