In the skip-ahead-distinct optimization, fix a bug in the logic that determines

when to invoke the optimization based on sqlite_stat1 statistics.

FossilOrigin-Name: 89f9e4363aa19f306e55f749c442eae2f8994f6a47c65e645a79b308b450d5e5

diff --cc manifest
index 656039fcaa277673a0aaabd2006161eb402772aa,3cdb0e259c1eba8cd7dee598538289b0675e9f7c..face18583a9d3a0488a50566b4185971940f1d58
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,8 -1,8 +1,8 @@@
- C Remove\send-of-line\swhitespace\sfrom\slemon.c.
- D 2017-04-14T19:46:12.138
 -C Fix\sto\sthe\sdecision\slogic\sfor\swhen\sto\suse\sthe\sskip-ahead-distinct\soptimization.
 -D 2017-04-14T22:41:27.127
++C In\sthe\sskip-ahead-distinct\soptimization,\sfix\sa\sbug\sin\sthe\slogic\sthat\sdetermines\nwhen\sto\sinvoke\sthe\soptimization\sbased\son\ssqlite_stat1\sstatistics.
++D 2017-04-15T11:53:47.342
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  F README.md 2b15fae33852f2f53996774c21fb41e1d94181c4401a0e43ac93e11f2cc901b9
  F VERSION 0a0e02e16b44ea735b40118fc844311b2ab0d35b25fbeda5120aee62f973f663
  F aclocal.m4 a5c22d164aff7ed549d53a90fa56d56955281f50
@@@ -1572,7 -1572,7 +1572,8 @@@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a9
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diff --cc manifest.uuid
index e26839a001c47638344c3b29f231c8383af8c8b1,cb2613c629f8870186a906441ae75376df7a1227..2536b3c64ebaef9fac473fc2545cfb86be661d92
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
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