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-rw-r--r--strbuf.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/strbuf.h b/strbuf.h
index 675a91f938..f722331470 100644
--- a/strbuf.h
+++ b/strbuf.h
@@ -120,6 +120,8 @@ extern void strbuf_addbuf_percentquote(struct strbuf *dst, const struct strbuf *
__attribute__((format (printf,2,3)))
extern void strbuf_addf(struct strbuf *sb, const char *fmt, ...);
+__attribute__((format (printf,2,0)))
+extern void strbuf_vaddf(struct strbuf *sb, const char *fmt, va_list ap);
extern size_t strbuf_fread(struct strbuf *, size_t, FILE *);
/* XXX: if read fails, any partial read is undone */