Improve documentation of --keep-redundant.

The help text for --keep-redundant was rather convoluted. This commit
shortens the text with no essential semantic change.

The patch also removes the sentence that encourages to specify this
option if the destination directory is only used for snapshots. After
all, most file systems allow to create an insane number of files,
so keeping snapshots around forever can result in a file system that
can no longer be checked or repaired due to the excessive number of
used inodes.

diff --git a/dss.ggo b/dss.ggo
index 8a3d304d6fcef2c1c1e9bf41c2acfc539bd2824e..5b78ddaa5724e8f6e5ef015613aefb38acf0efdc 100644 (file)
--- a/dss.ggo
+++ b/dss.ggo
@@ -454,13 +454,10 @@ option "keep-redundant" k
 "Prune by disk space only"
 flag off
 details="
-       If this flag is not given dss removes redundant and outdated
-       snapshots automatically.
-
-       Otherwise, this feature is deactivated so that snapshots are
-       only being removed in case disk space or number of free inodes
-       becomes low. Use this flag if the file system containing the
-       destination directory is used for snapshots only.
+       By default, redundant and outdated snapshots are removed automatically
+       to keep the number of snapshots in harmony with the configured
+       policy. If this flag is given, dss removes such snapshots only if
+       disk space or number of free inodes becomes low.
 "
 
 option "min-complete" -