Clarify usage of --rsync-option.

1 files changed, 6 insertions, 2 deletions

diff --git a/dss.ggo b/dss.ggo
index 1772b99..099df4c 100644
--- a/dss.ggo
+++ b/dss.ggo
@@ -195,8 +195,12 @@ string typestr="option"
 optional
 multiple
 details="
-	These option may be given multiple times. The arguments passed
-	to that option are passed verbatim to the rsync command.
+	This option may be given multiple times. The given argument is
+	passed verbatim to the rsync command. Note that in order to use
+	rsync options that require an argument, you have to specify the
+	option and its argument as separate --rsync-options, like this:
+
+		--rsync-option --exclude --rsync-option /proc
 "
 
 ###################