[scripts/robotpkg_helpers] Add display information to RobotpkgPackage.

scripts/robotpkg_helpers/package.py

@@ -48,9 +48,18 @@ class RobotpkgPackage:
             print(self.includes_mk)
 
         if hasattr(self,'depend_mk_system_pkg'):
-            print("Depend SYSTEM in depend.mk:")
-            print(self.depend_mk_system_pkg)
+            if not len(self.depend_mk_system_pkg)==0:
+                print("Depend SYSTEM in depend.mk:")
+                print(self.depend_mk_system_pkg)
+
+        if hasattr(self,'tree_of_includes_os'):
+            print("tree_of_includes_os:")
+            print(self.tree_of_includes_os)
 
+        if hasattr(self,'tree_of_includes_dep'):
+            print("tree_of_includes_dep:")
+            print(self.tree_of_includes_dep)
+            
         
     def analyze_makefile(self,make_content):
         """ This methods analyzes the contents of the string make_content.