Description of problem:

CVO prints incorrect log diffs because the diffs are modified before printing the log

How reproducible:

Always

Steps to Reproduce:

1. CVO reconciles on modified value 
2. CVO prints incorrect diff

Expected results:

CVO prints logs thats accurate before modification 

Additional info:

For example,

here https://github.com/openshift/cluster-version-operator/blob/master/lib/resourceapply/rbac.go#L33, we send data to function to check if things have changed.

and we then change the existing value along with setting modified as true

https://github.com/openshift/cluster-version-operator/blob/master/lib/resourcemerge/rbac.go#L15

similarly this exists in https://github.com/openshift/cluster-version-operator/blob/master/lib/resourcemerge/meta.go#L10 and other functions. 

this results in incorrect diff when we eventually print in log 

here https://github.com/openshift/cluster-version-operator/blob/master/lib/resourceapply/rbac.go#L38

this will require some work to fix the logging to make sure we're logging the stuff that is correct.