*: use llist_pop for traverse-and-free list operation

function                                             old     new   delta
append_file_list_to_list                             109     111      +2
udhcpc_main                                         2414    2413      -1
run_parts_main                                       325     324      -1
od_main                                             2324    2323      -1
getopt_main                                          709     707      -2
env_main                                             253     251      -2
sed_main                                             659     656      -3
ps_main                                              522     519      -3
traceroute_main                                     3960    3954      -6
sort_main                                            844     838      -6
diff_main                                            866     858      -8
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/10 up/down: 2/-33)            Total: -31 bytes

1 files changed, 1 insertions, 1 deletions

diff --git a/findutils/xargs.c b/findutils/xargs.c
index 352f7e64c..3322e9ebd 100644
--- a/findutils/xargs.c
+++ b/findutils/xargs.c
@@ -502,7 +502,7 @@ int xargs_main(int argc, char **argv)
                 if (child_error > 0 && child_error != 123) {
                         break;
                 }
-        }
+        } /* while */
         if (ENABLE_FEATURE_CLEAN_UP)
                 free(max_chars);
         return child_error;