Fix to allow telemetry to handle empty dictionaries correctly.

This patch resolves an issue where empty dictionaries are reported
by telemetry as '[]' rather than '{}'. Initializing the output
buffer based on the container type resolves the issue.

Signed-off-by: Jonathan Erb <[email protected]>
---
 .mailmap                  | 2 +-
 lib/telemetry/telemetry.c | 6 +++++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/.mailmap b/.mailmap
index ab0742a382..a3302ba7a1 100644
--- a/.mailmap
+++ b/.mailmap
@@ -675,7 +675,7 @@ John Ousterhout <[email protected]>
 John Romein <[email protected]>
 John W. Linville <[email protected]>
 Jonas Pfefferle <[email protected]> <[email protected]>
-Jonathan Erb <[email protected]> <[email protected]>
+Jonathan Erb <[email protected]>
 Jonathan Tsai <[email protected]>
 Jon DeVree <[email protected]>
 Jon Loeliger <[email protected]>
diff --git a/lib/telemetry/telemetry.c b/lib/telemetry/telemetry.c
index 92982842a8..0788a32210 100644
--- a/lib/telemetry/telemetry.c
+++ b/lib/telemetry/telemetry.c
@@ -169,7 +169,11 @@ container_to_json(const struct rte_tel_data *d, char 
*out_buf, size_t buf_len)
                d->type != TEL_ARRAY_INT && d->type != TEL_ARRAY_STRING)
                return snprintf(out_buf, buf_len, "null");
 
-       used = rte_tel_json_empty_array(out_buf, buf_len, 0);
+       if (d->type == RTE_TEL_DICT)
+               used = rte_tel_json_empty_obj(out_buf, buf_len, 0);
+       else
+               used = rte_tel_json_empty_array(out_buf, buf_len, 0);
+
        if (d->type == TEL_ARRAY_UINT)
                for (i = 0; i < d->data_len; i++)
                        used = rte_tel_json_add_array_uint(out_buf,
-- 
2.34.1

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