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-rw-r--r--src/core/vsprintf.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/core/vsprintf.c b/src/core/vsprintf.c
index 77373ccf0..d5a67623a 100644
--- a/src/core/vsprintf.c
+++ b/src/core/vsprintf.c
@@ -26,6 +26,7 @@ PRINTF and friends
%d - decimal int
%c - char
%s - string
+ %m - string representation of the most recent error
%@ - Internet address in ddd.ddd.ddd.ddd notation
%! - Ethernet address in xx:xx:xx:xx:xx:xx notation
Note: width specification ignored