Merge pull request #1903 from leucos/mergeable-hash-vars

Adds user-selectable hash merging support in vars

examples/ansible.cfg

@@ -76,6 +76,16 @@ remote_port=22
 
 sudo_exe=sudo
 
+# how to handle hash defined in several places
+# hash can be merged, or replaced
+# if you use replace, and have multiple hashes named 'x', the last defined
+# will override the previously defined one
+# if you use merge here, hash will cumulate their keys, but keys will still
+# override each other
+# replace is the default value, and is how ansible always handled hash variables
+#
+# hash_behaviour=replace
+
 # if set, always use this private key file for authentication, same as if passing
 # --private-key to ansible or ansible-playbook