Fix small memory leak.

When we start using the ignoredir alist we should initialize it to let
the code know its owns the data so it will free all data on a destroy.

src/dird/inc_conf.c

@@ -656,14 +656,21 @@ static void store_fstype(LEX *lc, RES_ITEM *item, int index, int pass)
 /* Store exclude directory containing  info */
 static void store_excludedir(LEX *lc, RES_ITEM2 *item, int index, int pass, bool exclude)
 {
+   INCEXE *incexe;
+
    if (exclude) {
       scan_err0(lc, _("ExcludeDirContaining directive not permitted in Exclude.\n"));
       /* NOT REACHED */
    }
 
    lex_get_token(lc, T_NAME);
    if (pass == 1) {
-      res_incexe.ignoredir.append(bstrdup(lc->str));
+      incexe = &res_incexe;
+      if (incexe->ignoredir.size() == 0) {
+         incexe->ignoredir.init(10, true);
+      }
+      incexe->ignoredir.append(bstrdup(lc->str));
+      Dmsg1(900, "Add to ignoredir_list %s\n", lc->str);
    }
    scan_to_eol(lc);
 }