util: properly implement %c

fix for 910 reply

diff --git a/src/util.cpp b/src/util.cpp
index 7d31889..024cb7a 100644 (file)
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -38,7 +38,7 @@ void append_strf(std::vector<char> *v, const char *s, ...) {
                        const char *c = va_arg(ap, const char *);
                        append_str(v, c ? c : "(null)");
                        s = end + 2;
-               } else if (end[1] == 's') { // %s
+               } else if (end[1] == 'c') { // %c
                        append_strn(v, s, end-s);
                        char c = static_cast<char>(va_arg(ap, int));
                        append_strn(v, &c, 1);