[PATCH 02/10] lei prune-mail-sync: handle --all (no args)

[Eric Wong]

This still needs tests, but I noticed "--all" w/o "local" or
"remote" was not working correctly since split() returned
an empty array.
---
 lib/PublicInbox/LeiMailSync.pm | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/PublicInbox/LeiMailSync.pm b/lib/PublicInbox/LeiMailSync.pm
index 57b56b3c..bf8fb7de 100644
--- a/lib/PublicInbox/LeiMailSync.pm
+++ b/lib/PublicInbox/LeiMailSync.pm
@@ -330,6 +330,7 @@ sub group2folders {
 EOM
        my %x = map { $_ => $_ } split(/,/, $all);
        my @ok = grep(defined, delete(@x{qw(local remote), ''}));
+       push(@ok, '') if $all eq '';
        my @no = keys %x;
        if (@no) {
                @no = (join(',', @no));
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