Make some rm -rf commands safer

This way if for some unknown reason $(APP_TO_CLEAN) isn't
defined, we don't delete the entire world.

test/Makefile

@@ -134,7 +134,7 @@ clean-core:: clean-core-clean-crash-dump clean-core-distclean-tmp clean-core-hel
 .PHONY: core-clean-crash-dump core-distclean-tmp core-help clean-core-clean-crash-dump clean-core-distclean-tmp clean-core-help
 
 clean-core-clean-crash-dump clean-core-distclean-tmp clean-core-help:
-	$t rm -rf $(APP_TO_CLEAN)/
+	$t rm -rf $(APP_TO_CLEAN)
 
 core-clean-crash-dump: build clean-core-clean-crash-dump
 

test/core_app.mk

@@ -9,7 +9,7 @@ CORE_APP_CLEAN_TARGETS = $(addprefix clean-,$(CORE_APP_TARGETS))
 clean-core-app: $(CORE_APP_CLEAN_TARGETS)
 
 $(CORE_APP_CLEAN_TARGETS):
-	$t rm -rf $(APP_TO_CLEAN)/
+	$t rm -rf $(APP_TO_CLEAN)
 
 core-app: $(CORE_APP_TARGETS)
 

test/core_compat.mk

@@ -13,7 +13,7 @@ REBAR_BINARY = https://github.com/rebar/rebar/releases/download/2.6.0/rebar
 clean-core-compat: $(CORE_COMPAT_CLEAN_TARGETS)
 
 $(CORE_COMPAT_CLEAN_TARGETS):
-	$t rm -rf $(APP_TO_CLEAN)/
+	$t rm -rf $(APP_TO_CLEAN)
 
 core-compat: $(CORE_COMPAT_TARGETS)
 

test/core_deps.mk

@@ -9,7 +9,7 @@ CORE_DEPS_CLEAN_TARGETS = $(addprefix clean-,$(CORE_DEPS_TARGETS))
 clean-core-deps: $(CORE_DEPS_CLEAN_TARGETS) clean-core-deps-mv-moved clean-core-deps-mv-rebar-moved
 
 $(CORE_DEPS_CLEAN_TARGETS):
-	$t rm -rf $(APP_TO_CLEAN)/
+	$t rm -rf $(APP_TO_CLEAN)
 
 clean-core-deps-mv-moved:
 	$t rm -rf core_deps_mv-moved/

test/core_plugins.mk

@@ -9,7 +9,7 @@ CORE_PLUGINS_CLEAN_TARGETS = $(addprefix clean-,$(CORE_PLUGINS_TARGETS))
 clean-core-plugins: $(CORE_PLUGINS_CLEAN_TARGETS)
 
 $(CORE_PLUGINS_CLEAN_TARGETS):
-	$t rm -rf $(APP_TO_CLEAN)/
+	$t rm -rf $(APP_TO_CLEAN)
 
 core-plugins: $(CORE_PLUGINS_TARGETS)
 

test/core_upgrade.mk

@@ -9,7 +9,7 @@ CORE_UPGRADE_CLEAN_TARGETS = $(addprefix clean-,$(CORE_UPGRADE_TARGETS))
 clean-core-upgrade: $(CORE_UPGRADE_CLEAN_TARGETS)
 
 $(CORE_UPGRADE_CLEAN_TARGETS):
-	$t rm -rf $(APP_TO_CLEAN)/
+	$t rm -rf $(APP_TO_CLEAN)
 
 core-upgrade: $(CORE_UPGRADE_TARGETS)
 

test/plugin_bootstrap.mk

@@ -9,7 +9,7 @@ BOOTSTRAP_CLEAN_TARGETS = $(addprefix clean-,$(BOOTSTRAP_TARGETS))
 clean-bootstrap: $(BOOTSTRAP_CLEAN_TARGETS)
 
 $(BOOTSTRAP_CLEAN_TARGETS):
-	$t rm -rf $(APP_TO_CLEAN)/
+	$t rm -rf $(APP_TO_CLEAN)
 
 bootstrap: $(BOOTSTRAP_TARGETS)
 

test/plugin_c_src.mk

@@ -10,7 +10,7 @@ clean-c-src: $(C_SRC_CLEAN_TARGETS)
 clean-c_src: clean-c-src
 
 $(C_SRC_CLEAN_TARGETS):
-	$t rm -rf $(APP_TO_CLEAN)/
+	$t rm -rf $(APP_TO_CLEAN)
 
 c-src: $(C_SRC_TARGETS)
 c_src: c-src

test/plugin_dialyzer.mk

@@ -9,7 +9,7 @@ DIALYZER_CLEAN_TARGETS = $(addprefix clean-,$(DIALYZER_TARGETS))
 clean-dialyzer: $(DIALYZER_CLEAN_TARGETS)
 
 $(DIALYZER_CLEAN_TARGETS):
-	$t rm -rf $(APP_TO_CLEAN)/
+	$t rm -rf $(APP_TO_CLEAN)
 
 dialyzer: $(DIALYZER_TARGETS)
 

test/plugin_erlydtl.mk

@@ -9,7 +9,7 @@ ERLYDTL_CLEAN_TARGETS = $(addprefix clean-,$(ERLYDTL_TARGETS))
 clean-erlydtl: $(ERLYDTL_CLEAN_TARGETS)
 
 $(ERLYDTL_CLEAN_TARGETS):
-	$t rm -rf $(APP_TO_CLEAN)/
+	$t rm -rf $(APP_TO_CLEAN)
 
 erlydtl: $(ERLYDTL_TARGETS)
 

test/plugin_shell.mk

@@ -9,7 +9,7 @@ SHELL_CLEAN_TARGETS = $(addprefix clean-,$(SHELL_TARGETS))
 clean-shell: $(SHELL_CLEAN_TARGETS)
 
 $(SHELL_CLEAN_TARGETS):
-	$t rm -rf $(APP_TO_CLEAN)/
+	$t rm -rf $(APP_TO_CLEAN)
 
 shell: $(SHELL_TARGETS)