Missing barman-cli dependency for F26

Hi, it seems we have a broken dependency for barman-cli on Fedora 26

# dnf install barman-cli.noarch
Last metadata expiration check: 0:03:02 ago on Tue Feb  6 18:10:26 2018.
Error:
 Problem: conflicting requests
  - nothing provides python-argparse needed by barman-cli-1.2-1.f26.noarch

# dnf list barman-cli
Last metadata expiration check: 0:03:37 ago on Tue Feb  6 18:10:26 2018.
Available Packages
barman-cli.noarch               1.2-1.f26             pgdg10

I'll provide a fix for the spec file once I get the src.rpm :)

-- 
Martín Marqués                http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services