Clarify usage of --rsync-option.

diff --git a/dss.ggo b/dss.ggo
index 1772b99da180cfa4029c258768cd4015dac88ca8..099df4cd163765da66e2ba7eb1dca26789af1ed4 100644 (file)
--- 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
 "
 
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