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-rw-r--r--trace2/tr2_tgt_normal.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/trace2/tr2_tgt_normal.c b/trace2/tr2_tgt_normal.c
index 47a1882..213724d 100644
--- a/trace2/tr2_tgt_normal.c
+++ b/trace2/tr2_tgt_normal.c
@@ -142,8 +142,11 @@ static void fn_error_va_fl(const char *file, int line, const char *fmt,
{
struct strbuf buf_payload = STRBUF_INIT;
- strbuf_addstr(&buf_payload, "error ");
- maybe_append_string_va(&buf_payload, fmt, ap);
+ strbuf_addstr(&buf_payload, "error");
+ if (fmt && *fmt) {
+ strbuf_addch(&buf_payload, ' ');
+ maybe_append_string_va(&buf_payload, fmt, ap);
+ }
normal_io_write_fl(file, line, &buf_payload);
strbuf_release(&buf_payload);
}