Bryan O'Sullivan avatar Bryan O'Sullivan committed 03a9d49

A tiny simplification

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   | otherwise   = Text (A.run x) 0 len
   where
     ixs = indices needle haystack
-    cnt = L.length ixs
-    len = hayLen - (neeLen - repLen) * cnt
+    len = hayLen - (neeLen - repLen) * L.length ixs
     x = do
       marr <- A.new len
       let loop (i:is) o d = do
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