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-rw-r--r--include/strutils.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/strutils.h b/include/strutils.h
index 9f4339f41..f303450f5 100644
--- a/include/strutils.h
+++ b/include/strutils.h
@@ -212,6 +212,8 @@ static inline size_t ltrim_whitespace(unsigned char *str)
extern char *strnappend(const char *s, const char *suffix, size_t b);
extern char *strappend(const char *s, const char *suffix);
+extern char *strfappend(const char *s, const char *format, ...)
+ __attribute__ ((__format__ (__printf__, 2, 0)));
extern const char *split(const char **state, size_t *l, const char *separator, int quoted);
extern int skip_fline(FILE *fp);