update fmf

sanity/main.fmf

@@ -1,11 +1,5 @@
 summary: Basic Sanity test for lftp
 description: |
-    This is a basic sanity test for the lftp package. It is implemented
-    in python on top of the unittesting.py module.
-
-    Its purpose is to ensure that the basic functionality of lftp is preserved
-    as expected.
-
     Test case has been migrated to git. Any changes made here might be overwritten.
     See: https://tmt.readthedocs.io/en/latest/questions.html#nitrate-migration
 contact: Ondrej Mejzlik <omejzlik@redhat.com>
@@ -29,9 +23,12 @@ tag:
 - Tier1
 - tip_destructive_el8
 tier: '1'
+link:
+-   relates: https://bugzilla.redhat.com/show_bug.cgi?id=619405
+-   relates: https://bugzilla.redhat.com/show_bug.cgi?id=619494
 adjust:
 -   enabled: false
-    when: distro ~< rhel-6
+    when: distro < rhel-6
     continue: false
 extra-nitrate: TC#0054211
 extra-summary: /CoreOS/lftp/sanity