node_exporter_metrics: Use real_path for complaining on glob error

Signed-off-by: Hiroshi Hatake <[email protected]>

Author: cosmo0920

plugins/in_node_exporter_metrics/ne_utils.c

@@ -302,7 +302,7 @@ int ne_utils_path_scan(struct flb_ne *ctx, const char *mount, const char *path,
             flb_plg_error(ctx->ins, "no memory space available");
             return -1;
         case GLOB_ABORTED:
-            flb_plg_error(ctx->ins, "read error, check permissions: %s", path);
+            flb_plg_error(ctx->ins, "read error, check permissions: %s", real_path);
             return -1;;
         case GLOB_NOMATCH:
             ret = stat(path, &st);