man: fix horizontal scroll property name

Signed-off-by: José Expósito <jose.exposito89@gmail.com>
2 jobs for man-horizontal-scroll-prop-name in 1 minute and 25 seconds
Status Name Job ID Coverage
  Containers
passed fedora@container_build #15686841

00:00:34

 
  Build
passed fedora:33@default-build #15686842

00:00:50