SOVERSION bump to version 2.31.0
diff --git a/tools/lint/main_ni.c b/tools/lint/main_ni.c
index 04c2340..6e00339 100644
--- a/tools/lint/main_ni.c
+++ b/tools/lint/main_ni.c
@@ -567,6 +567,7 @@
 
     c->ctx_options = YL_DEFAULT_CTX_OPTIONS;
     c->data_parse_options = YL_DEFAULT_DATA_PARSE_OPTIONS;
+    c->data_validate_options = YL_DEFAULT_DATA_VALIDATE_OPTIONS;
     c->line_length = 0;
 
     opterr = 0;