BUG/MINOR: stats: fix typo in `TotalSplicedBytesOut` field name

An additional `d` slipped in there.

This likely should not be backported, because scripts might rely on the
typoed name.

Public discussion on this topic here:
   https://www.mail-archive.com/haproxy@formilux.org/msg43359.html
diff --git a/src/stats.c b/src/stats.c
index 5f883f9..823c8f6 100644
--- a/src/stats.c
+++ b/src/stats.c
@@ -150,7 +150,7 @@
 	[INF_BUSY_POLLING]                   = { .name = "BusyPolling",                 .desc = "1 if busy-polling is currently in use on the worker process, otherwise zero (config.busy-polling)" },
 	[INF_FAILED_RESOLUTIONS]             = { .name = "FailedResolutions",           .desc = "Total number of failed DNS resolutions in current worker process since started" },
 	[INF_TOTAL_BYTES_OUT]                = { .name = "TotalBytesOut",               .desc = "Total number of bytes emitted by current worker process since started" },
-	[INF_TOTAL_SPLICED_BYTES_OUT]        = { .name = "TotalSplicdedBytesOut",       .desc = "Total number of bytes emitted by current worker process through a kernel pipe since started" },
+	[INF_TOTAL_SPLICED_BYTES_OUT]        = { .name = "TotalSplicedBytesOut",        .desc = "Total number of bytes emitted by current worker process through a kernel pipe since started" },
 	[INF_BYTES_OUT_RATE]                 = { .name = "BytesOutRate",                .desc = "Number of bytes emitted by current worker process over the last second" },
 	[INF_DEBUG_COMMANDS_ISSUED]          = { .name = "DebugCommandsIssued",         .desc = "Number of debug commands issued on this process (anything > 0 is unsafe)" },
 	[INF_CUM_LOG_MSGS]                   = { .name = "CumRecvLogs",                 .desc = "Total number of log messages received by log-forwarding listeners on this worker process since started" },