Improve error diagnostics.

[dss.git] / dss.ggo

diff --git a/dss.ggo b/dss.ggo
index 23f268580313a6d3437ef75f1ab8a4cf9fa6c839..506fbf105433fed61631ad965e5b8295068cbfe7 100644 (file)
--- a/dss.ggo
+++ b/dss.ggo
@@ -110,11 +110,17 @@ groupoption "prune" P
 "Remove redundant and outdated snapshots"
 group="command"
 details="
-       A snapshot is considered outdated if it belongs to an interval
-       greater than the maximum number of intervals. It is said to be
-       redundant if it belongs to an interval that already contains
-       more than the desired number of snapshots. This command gets
-       rid of such snapshots.
+       A snapshot is considered outdated if its interval number
+       is greater or equal than the specified number of unit
+       intervals. See the \"Intervals\" section below for the precise
+       definition of these terms.
+
+       A snapshot is said to be redundant if it belongs to an
+       interval that already contains more than the desired number
+       of snapshots.
+
+       The prune command gets rid of both outdated and redundant
+       snapshots.
 "
 
 groupoption "ls" L