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ref: 1c585c2cc2404281311525dd26a80c8935f6332d
parent: ce2ad9701d018dcff87ecabf1038bb202ea39a50
author: Sigrid Solveig Haflínudóttir <sigrid@ftrv.se>
date: Thu Jul 14 17:12:37 EDT 2022

sam(1): clarify "<rio>" works on dot just like "look"

--- a/sys/man/1/sam
+++ b/sys/man/1/sam
@@ -835,8 +835,10 @@
 The snarf buffer is unaffected.
 .TP
 .B <rio>
-Exchange snarf buffers with
+Exchange dot with snarf buffer of
 .IR rio .
+If dot is the null string, the text in the snarf buffer is
+used.
 .TP
 .BI / regexp
 Search forward for the next match of the last regular expression