[PULL 06/16] tests/docker: alias docker-help target for consistency

["Alex Bennée" <alex.bennee@linaro.org>]

We have a bunch of -help targets so this will save some cognitive
dissonance. Keep the original for those with muscle memory.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210202134001.25738-6-alex.bennee@linaro.org>

diff --git a/Makefile b/Makefile
index b0dff73904..d7fb6b270e 100644
--- a/Makefile
+++ b/Makefile
@@ -305,7 +305,7 @@ endif
 	@echo  'Test targets:'
 	$(call print-help,check,Run all tests (check-help for details))
 	$(call print-help,bench,Run all benchmarks)
-	$(call print-help,docker,Help about targets running tests inside containers)
+	$(call print-help,docker-help,Help about targets running tests inside containers)
 	$(call print-help,vm-help,Help about targets running tests inside VM)
 	@echo  ''
 	@echo  'Documentation targets:'
diff --git a/tests/docker/Makefile.include b/tests/docker/Makefile.include
index bdc53ddfcf..a5c1e4a615 100644
--- a/tests/docker/Makefile.include
+++ b/tests/docker/Makefile.include
@@ -1,6 +1,6 @@
 # Makefile for Docker tests
 
-.PHONY: docker docker-test docker-clean docker-image docker-qemu-src
+.PHONY: docker docker-help docker-test docker-clean docker-image docker-qemu-src
 
 NULL :=
 SPACE := $(NULL) #
@@ -218,6 +218,8 @@ endif
 	@echo '                         Specify which container engine to run.'
 	@echo '    REGISTRY=url         Cache builds from registry (default:$(DOCKER_REGISTRY))'
 
+docker-help: docker
+
 # This rule if for directly running against an arbitrary docker target.
 # It is called by the expanded docker targets (e.g. make
 # docker-test-foo@bar) which will do additional verification.
-- 
2.20.1