Description of problem:
In chapter 6.3, there is typo in following command on two places:
# rados list-inconsistent-object <placement-group-id>

Correct command is 
# rados list-inconsistent-obj <placement-group-id>

 https://access.redhat.com/documentation/en-us/red_hat_ceph_storage/2/html-single/troubleshooting_guide/#listing-inconsistencies

Version-Release number of selected component (if applicable):
RHCS 2

How reproducible:
Always

Steps to Reproduce:
1.
2.
3.

Actual results:
executing command with typo ends with 
"unrecognized command list-inconsistent-object; -h or --help for usage"

Expected results:
correct commands works fine

Additional info:
Part in docu, line where to fix:
----------------
Listing Inconsistent Objects in a Placement Group

rados list-inconsistent-object <placement-group-id>   <-----

For example, list inconsistent objects in a placement group with ID 0.6:

# rados list-inconsistent-object 0.6        <-----
{
    "epoch": 14,
    "inconsistents": [
.....