walker_fetch: fix minor memory leak

diff --git a/strbuf.c b/strbuf.c
index ac62982e672c22457468f601b35716dc9a52a81c..12c78656ca9ddb51fb62b95be29d18056911803f 100644 (file)
--- a/strbuf.c
+++ b/strbuf.c
@@ -600,3 +600,22 @@ char *xstrdup_tolower(const char *string)
        result[i] = '\0';
        return result;
 }
+
+char *xstrvfmt(const char *fmt, va_list ap)
+{
+       struct strbuf buf = STRBUF_INIT;
+       strbuf_vaddf(&buf, fmt, ap);
+       return strbuf_detach(&buf, NULL);
+}
+
+char *xstrfmt(const char *fmt, ...)
+{
+       va_list ap;
+       char *ret;
+
+       va_start(ap, fmt);
+       ret = xstrvfmt(fmt, ap);
+       va_end(ap);
+
+       return ret;
+}