T75: Update help strings for timeouts

Co-authored-by: Daniil Baturin <daniil@baturin.org>

Author: hedrok

interface-definitions/system_flow-accounting.xml.in

@@ -117,10 +117,10 @@
               </tagNode>
               <leafNode name="inactive-timeout">
                 <properties>
-                  <help>Export flow after it's inactive for this timeout in seconds</help>
+                  <help>Flow inactivity timeout</help>
                   <valueHelp>
                     <format>u32:0-2147483647</format>
-                    <description>Timeout to export inactive flow, seconds</description>
+                    <description>Inactive flow export timeout (seconds)</description>
                   </valueHelp>
                   <constraint>
                     <validator name="numeric" argument="--range 0-2147483647"/>
@@ -130,10 +130,10 @@
               </leafNode>
               <leafNode name="active-timeout">
                 <properties>
-                  <help>Export flow after it's active for this timeout in seconds</help>
+                  <help>Flow activity timeout</help>
                   <valueHelp>
                     <format>u32:0-2147483647</format>
-                    <description>Timeout to export active flow, seconds</description>
+                    <description>Active flow export timeout (seconds)</description>
                   </valueHelp>
                   <constraint>
                     <validator name="numeric" argument="--range 0-2147483647"/>