[WIP 13/17] searchidx: fix comment around next_thread_id

[Eric Wong (Contractor, The Linux Foundation)]

I decided not to copy the notmuch implementation regarding
serialization of integers to Xapian metadata.
---
 lib/PublicInbox/SearchIdx.pm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/PublicInbox/SearchIdx.pm b/lib/PublicInbox/SearchIdx.pm
index 0ee0779..fa5057f 100644
--- a/lib/PublicInbox/SearchIdx.pm
+++ b/lib/PublicInbox/SearchIdx.pm
@@ -394,7 +394,7 @@ sub term_generator { # write-only
 }
 
 # increments last_thread_id counter
-# returns a 64-bit integer represented as a hex string
+# returns a 64-bit integer represented as a decimal string
 sub next_thread_id {
        my ($self) = @_;
        my $db = $self->{xdb};
-- 
EW

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