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-rw-r--r--docs/devel/tracing.txt2
1 files changed, 2 insertions, 0 deletions
diff --git a/docs/devel/tracing.txt b/docs/devel/tracing.txt
index 76e492a489..8231bbf5d1 100644
--- a/docs/devel/tracing.txt
+++ b/docs/devel/tracing.txt
@@ -112,6 +112,8 @@ Trace events should use types as follows:
Format strings should reflect the types defined in the trace event. Take
special care to use PRId64 and PRIu64 for int64_t and uint64_t types,
respectively. This ensures portability between 32- and 64-bit platforms.
+Format strings must not end with a newline character. It is the responsibility
+of backends to adapt line ending for proper logging.
Each event declaration will start with the event name, then its arguments,
finally a format string for pretty-printing. For example: