dmesg: only write one message to json

Before we would add all of the message buffer.

Signed-off-by: Thomas Weißschuh <thomas@t-8ch.de>
(cherry picked from commit 159ea1470d712a92e0e0b02a8d10e072acbfbaf8)

diff --git a/sys-utils/dmesg.c b/sys-utils/dmesg.c
index 5a794834c33928bf7d5bfb885616c117bb1a3462..f3784111ad40777264f89a4e7c67ebe043a5564b 100644 (file)
--- a/sys-utils/dmesg.c
+++ b/sys-utils/dmesg.c
@@ -1118,7 +1118,7 @@ full_output:
                        color_disable();
        } else {
                if (ctl->json)
-                       ul_jsonwrt_value_s(&ctl->jfmt, "msg", line);
+                       ul_jsonwrt_value_s_sized(&ctl->jfmt, "msg", line, mesg_size);
                else
                        safe_fwrite(ctl, line, mesg_size, ctl->indent, stdout);
        }