Add the printf() SQL function.

FossilOrigin-Name: a1bb62f91a85af0584100c3ad77877a949c30cca

diff --cc manifest
index 92e7b53f9fb2ccee803c033a92086f2894e37fff,e7519c3fa2a60fe7a9f455d8bae18acf03a2a807..1fb5758b05eaad6609a3a7cfa040e905988e7a99
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,5 -1,5 +1,5 @@@
- C Allow\sthe\sSQLITE_DETERMINISTIC\sflag\sto\sbe\sORed\sinto\sthe\spreferred\stext\sencoding\nof\sapplication-defined\sfunctions,\sto\smark\sthe\sfunction\sas\sdeterministic.
- D 2013-12-14T13:44:22.886
 -C Fix\sthe\sformatting\sof\s%c\sin\sthe\sprintf()\sSQL\sfunction.
 -D 2013-12-17T15:58:42.950
++C Add\sthe\sprintf()\sSQL\sfunction.
++D 2013-12-17T16:10:57.193
  F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
  F Makefile.in 2ef13430cd359f7b361bb863504e227b25cc7f81
  F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@@ -1146,7 -1147,7 +1147,8 @@@ F tool/vdbe-compress.tcl 0cf56e9263a152
  F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
  F tool/warnings.sh d1a6de74685f360ab718efda6265994b99bbea01
  F tool/win/sqlite.vsix 030f3eeaf2cb811a3692ab9c14d021a75ce41fff
- P bc5febef921bd12ca7760e9d07d3be0e67140320
- R 08fd6b0f6ffb77c364a2bec4efb57810
 -P 6db7052eeefafdbf26b3153bc38600fecfb53ae6
++P 5716fc2341ddd8cf64139e7168597f864da4e10b 3375571a5e267744c19a7c310840256cec57a242
+ R 2f73ea36e182ebaad881490b3d78bb71
++T +closed 3375571a5e267744c19a7c310840256cec57a242
  U drh
- Z d2313ea9b793ebbfa6428f7e8b022d58
 -Z 671b11d5131d6faea51d8a864c8026f9
++Z 3980fde025c24face9a02012ab95cda1

diff --cc manifest.uuid
index 0d64591d7bbff8e7c3c5336ad8b61d5e1064b9b5,56747e8410e4cb7ff1f10898fa8c47e1bbe7f8fd..ceab92b6f6ae36aa36357dc33ef2606da22d305a
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- 5716fc2341ddd8cf64139e7168597f864da4e10b
 -3375571a5e267744c19a7c310840256cec57a242
++a1bb62f91a85af0584100c3ad77877a949c30cca