Add the SQLITE_DBCONFIG_DEFENSIVE flag.

FossilOrigin-Name: 11d98414eac467affb0b3cf0c7e5cc3d43184fc2b6e7e898bb5277b51ea9e1fa

diff --cc manifest
index d7f4ac9809ca740ba7ad57aad6da2572a10b6dfe,ccb481572f92e67dae28f03d7ee059703c411813..d225e86d8618b4566ba9fad470a6e50f949c34cd
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,5 -1,5 +1,5 @@@
- C Eponymous\svirtual\stables\sappear\sto\sexist\sin\sall\sschemas.\sThis\sis\san\salternative\nand\simproved\sfix\sto\sthe\seponymous\svirtual\stable\sin\strigger\sproblem\sthat\nwas\spreviously\saddressed\sby\scheckin\s[1fa74930ab56171e].
- D 2018-11-05T16:38:10.721
 -C Correct\sthe\sinternal\slogic\sfor\sSQLITE_DBCONFIG_DEFENSIVE.
 -D 2018-11-03T17:31:48.414
++C Add\sthe\sSQLITE_DBCONFIG_DEFENSIVE\sflag.
++D 2018-11-05T19:37:30.613
  F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
  F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
  F Makefile.in edbb6e20bb1decf65f6c64c9e61004a69bdf8afb39cdce5337c916b03dfcd1e3
@@@ -445,10 -445,10 +445,10 @@@ F src/auth.c 0fac71038875693a937e506bce
  F src/backup.c 78d3cecfbe28230a3a9a1793e2ead609f469be43e8f486ca996006be551857ab
  F src/bitvec.c 17ea48eff8ba979f1f5b04cc484c7bb2be632f33
  F src/btmutex.c 8acc2f464ee76324bf13310df5692a262b801808984c1b79defb2503bbafadb6
- F src/btree.c 75ec3352656834ed096af95410610e7e7f16e1cdb65b0876bad49387b01d21b3
+ F src/btree.c 3ef104ecae8b1b5f0458be1f5fa7c1ecf25fdc322a9d63bb8151f89eb32d381e
  F src/btree.h febb2e817be499570b7a2e32a9bbb4b607a9234f6b84bb9ae84916d4806e96f2
  F src/btreeInt.h 620ab4c7235f43572cf3ac2ac8723cbdf68073be4d29da24897c7b77dda5fd96
- F src/build.c dad9c5ef0208c265cfa337627e1dc157e7f0f9d8ff2446ce71c8ee26bfc3c253
 -F src/build.c 55f10596094e8a151df634308507cf397713fe96c42420a8aeef3b18be7eddac
++F src/build.c a614b226b9af1e49ec6d0ffbf3aa0d38a73123336a7f78930005db939d038253
  F src/callback.c 789bd33d188146f66c0dd8306472a72d1c05f71924b24a91caf6bd45cf9aba73
  F src/complete.c a3634ab1e687055cd002e11b8f43eb75c17da23e
  F src/ctime.c 109e58d00f62e8e71ee1eb5944ac18b90171c928ab2e082e058056e1137cc20b
@@@ -1776,7 -1775,7 +1776,8 @@@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a9
  F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
  F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
  F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
- P af39661e60f562b9eb10343fd83e8fe21be4d7276111e7853c1179a24cab09ce
- R 339c64ce09fca73ceee8c1042422903e
 -P af3f29d49359af2291b1d9e06e0db76fd000fbd24b4ac84d2668a0d1322efd83
 -R 91b44778ed04a421f8e68340d094e060
++P b8d35c4a7c99ce3753761e5b81269d52c3c910c603fa70b72549883ba68bc485 76094345821246c887a31a234b339d03a78eddbb9fab33b06c3c20797c038349
++R 926c099479c1d3f76ac3c956522bfabe
++T +closed 76094345821246c887a31a234b339d03a78eddbb9fab33b06c3c20797c038349
  U drh
- Z 33ab2eb0a685e3d60c9c79597471e0c2
 -Z ed3bd4f0fcf1321ed314532603a51952
++Z 58f19e654e2db3cbbf8bd66e3b3e9711

diff --cc manifest.uuid
index 16f62c86e8480c4131999136e6d87c949b243ad1,d555a401fcc7b6e5e612f993b312074350ee3b45..768477b0a3d371c73b78fb03eb79d1f735a83a3a
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- b8d35c4a7c99ce3753761e5b81269d52c3c910c603fa70b72549883ba68bc485
 -76094345821246c887a31a234b339d03a78eddbb9fab33b06c3c20797c038349
++11d98414eac467affb0b3cf0c7e5cc3d43184fc2b6e7e898bb5277b51ea9e1fa

diff --cc src/build.c
Simple merge