Description of problem:
When apply 'oc patch' to update resource with fields that are non-existing, i.e. not defined by the resource specification, the result should give prompt, telling us the patch doesn't take effect.

Version-Release number of selected component (if applicable):
openshift v1.0.6-266-gcfbe4fb
oc v1.0.6-266-gcfbe4fb
kubernetes v1.1.0-alpha.1-653-g86b4e77

How reproducible:
Always

Steps to Reproduce:
1.Launch openshift
2.Login, create a project and create applications
3.Use oc patch to update non-existing fields to resource
1 > Check dc resource
$ oc get dc
2> $ oc patch dc database -p '{"nothisfield": {"replicas": 2}}'
3> $ oc get dc/database -t '{{ .nothisfield }}' | grep '.'


Actual results:
3.
2>
"database" patched
3> In fact, we can see it is not patched
<no value>

Expected results:
3.
2> We suggest the output give prompt, like:
patch canceled, no changes made
3>
<no value>


Additional info:
If do not give prompt, then operation mistake may be omitted. e.g. I intend to patch dc, but mistakenly apply it to bc:
oc patch bc ruby-sample-build -p '{"spec": {"replicas": 2}}'
But the result is it is patched