Minor improvement.

* src/err.h (error,packerror): Mark as printflike.
* doc/binlogsel.1: Update.

1 files changed, 4 insertions, 2 deletions

diff --git a/src/err.h b/src/err.h
index aab01be..a5c1b68 100644
--- a/src/err.h
+++ b/src/err.h
@@ -17,6 +17,8 @@
 extern const char *progname;
 
 void setprogname(const char *);
-void error(const char *fmt, ...);
-void packerror(const char *fmt, ...);
+void error(const char *fmt, ...)
+	__attribute__ ((__format__ (__printf__, 1, 2)));
+void packerror(const char *fmt, ...)
+	__attribute__ ((__format__ (__printf__, 1, 2)));
 void version(void);