lei: use standard warn() in more places

warn() is easier to augment with context information, and
frankly unavoidable in the presence of 3rd-party libraries
we don't control.

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/PublicInbox/LeiInput.pm b/lib/PublicInbox/LeiInput.pm
index 83479221..6a90e7e1 100644
--- a/lib/PublicInbox/LeiInput.pm
+++ b/lib/PublicInbox/LeiInput.pm
@@ -343,8 +343,8 @@ $input is `eml', not --in-format=$in_fmt
 --mail-sync specified but no inputs support it
 
                 # non-fatal if some inputs support support sync
-                $lei->err("# --mail-sync will only be used for @{$sync->{ok}}");
-                $lei->err("# --mail-sync is not supported for: @{$sync->{no}}");
+                warn("# --mail-sync will only be used for @{$sync->{ok}}\n");
+                warn("# --mail-sync is not supported for: @{$sync->{no}}\n");
         }
         if ($net) {
                 $net->{-can_die} = 1;