Description of problem:
thin_rmap returns 0 when using invalid range. It should return 1 and an error message.

Version-Release number of selected component (if applicable):
device-mapper-persistent-data-1.0.4-1.el9

How reproducible:
always

Steps to Reproduce:
1. thin_rmap /dev/mapper/vgtest-swapvol --region 10..0

Actual results:
thin_rmap returns 0 and no output

Expected results:
Should return 1 for using invalid range and print error message similar to one in 0.9.0 version

Additional info:
In 0.9.0 thin_rmap returns following error message for invalid regions:

1. thin_rmap /dev/mapper/vgtest-swapvol --region 0..0
   badly formed region (end <= begin)

1. thin_rmap /dev/mapper/vgtest-swapvol --region 10..0
   badly formed region (end <= begin)