[Docs] Fix changelog entries for 3.9.1.

Signed-off-by: Giacomo Marciani <[email protected]>

Author: gmarciani

CHANGELOG.md

@@ -5,8 +5,8 @@ CHANGELOG
 ------
 
 **BUG FIXES**
-- Fix an issue that may cause data loss when a shared storage is unmounted as part of a cluster update
-  while it is in use and with no backup strategy in place.
+- Fix an issue that may cause data loss when a shared storage is unmounted as part of a cluster update 
+  and no backup strategy is in place.
 
 3.9.0
 ------