upas/marshal: fix printinreplyto function

According to RFC822, the message identifier (msg-id) in a
"In-Reply-To" header must start with a '<' and end with a '>'.

diff --git a/sys/src/cmd/upas/marshal/marshal.c b/sys/src/cmd/upas/marshal/marshal.c
index 7ddec78eedb19a9bfbb97c09354414996a681756..c4c8eb9218bc1fad6fab5bc75b6555d174b9ae74 100644 (file)
--- a/sys/src/cmd/upas/marshal/marshal.c
+++ b/sys/src/cmd/upas/marshal/marshal.c
@@ -868,7 +868,7 @@ printinreplyto(Biobuf *out, char *dir)
        if(n <= 0)
                return 0;
        buf[n] = 0;
-       return Bprint(out, "In-Reply-To: %s\n", buf);
+       return Bprint(out, "In-Reply-To: <%s>\n", buf);
 }
 
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