[sql] Import reference version of SQLite 3.8.7.4.

third_party/sqlite/sqlite-src-3080704/tool/rollback-test.c

 /*
 ** This program is used to generate and verify databases with hot journals.
 ** Use this program to generate a hot journal on one machine and verify
 ** that it rolls back correctly on another machine with a different
 ** architecture.
 **
 ** Usage:
 **
 **     rollback-test new [-utf8] [-utf16le] [-utf16be] [-pagesize=N] DATABASE
 **     rollback-test check DATABASE
@@ skipping 135 matching lines @@
       "PRAGMA cache_size=10;"
       "BEGIN;"
       "UPDATE t1 SET y=(y || -x)"
     );
     exit(0);
   }else{
     usage(argv[0]);
   }
   return 0;
 }