evil: add missing since

diff --git a/src/lib/evil/evil_string.h b/src/lib/evil/evil_string.h
index 372a4e4..6de66e9 100644 (file)
--- a/src/lib/evil/evil_string.h
+++ b/src/lib/evil/evil_string.h
@@ -32,6 +32,8 @@
  * Conformity: BSD
  *
  * Supported OS: Windows XP.
+ *
+ * @since 1.13
  */
 EAPI char *strndup(const char *str, size_t n);