1 files changed, 2 insertions, 0 deletions
diff --git a/src/ZNC.hs b/src/ZNC.hs
index c23ffe2..df57541 100644
--- a/src/ZNC.hs
+++ b/src/ZNC.hs
@@ -40,6 +40,8 @@ data Event
   | ParseError
   deriving (Show)
 
+-- | Returned vector has one entry for each line in the file, excepting the
+-- empty "line" after the final newline, if any.
 preparseLog :: ByteString -> VS.Vector Word32
 preparseLog = VS.fromList . findLineStarts 0
   where