build: print module that has unhandled install path

Print the name of the module that is providing an unhandled install
path.

Change-Id: I0e8b02f01de1dde715f0985034ad943f793218ba

Conflicts:
	core/base_rules.mk
diff --git a/core/base_rules.mk b/core/base_rules.mk
index 260e836..29c6c7f 100644
--- a/core/base_rules.mk
+++ b/core/base_rules.mk
@@ -116,7 +116,7 @@
     install_path_var := $(install_path_var)_PRIVILEGED
   endif
 
-   my_module_path := $($(install_path_var))
+  my_module_path := $($(install_path_var))
   ifeq ($(strip $(my_module_path)),)
     $(error $(LOCAL_PATH): unhandled install path "$(install_path_var) for $(LOCAL_MODULE)")
   endif