Review fix

into  mysql.com:/home/dlenev/mysql-5.1-merges

into  zippy.(none):/home/cmiller/work/mysql/mysql-5.1-new__bug17667

Logging behavior changed in early 5.1.  (The filename was never right, but
the "opt" file is unnecessary in 5.0 anyway.)

into  zippy.(none):/home/cmiller/work/mysql/mysql-5.1-new__bug17667

our sprintf()-alike in sync with our fprintf()-alike features.

This will make charset code easier to understand

into  mysql.com:/home/dlenev/mysql-5.0-bg11081

added I_S.REFARENTIAL_CONSTRAINTS table

into mysql.com:/home/hf/work/mysql-5.0.clean

into  zippy.(none):/home/cmiller/work/mysql/mysql-5.0__bug17667

Bug#17667: An attacker has the opportunity to bypass query logging.

This adds a new, local-only printf format specifier to our *printf functions
that allows us to print known-size buffers that must not be interpreted as 
NUL-terminated "strings."

It uses this format-specifier to print to the log, thus fixing this 
problem.

into  mysql.com:/home/jimw/my/mysql-5.1-clean

into mysql.com:/Users/kent/mysql/bk/mysql-5.0-new

into  mysql.com:/home/jimw/my/mysql-5.1-clean

into  mysql.com:/home/jimw/my/mysql-5.0-clean

  Use "./libtool --mode=execute" to find real path to executables

into  zippy.(none):/home/cmiller/work/mysql/mysql-5.1-new

into mysql.com:/home/hf/work/mysql-5.0.clean

into  mysql.com:/home/jimw/my/mysql-5.0-clean

into  mysql.com:/home/jimw/my/mysql-5.0-clean

into  zippy.(none):/home/cmiller/work/mysql/merge/mysql-5.0

into  mysql.com:/home/jimw/my/mysql-5.1-clean

into  mysql.com:/home/jimw/my/mysql-5.1-clean

into  zim.(none):/home/brian/mysql/merge-5.1

into mysql.com:/Users/kent/mysql/bk/mysql-4.1-new

  Fix strange "double" define for popen.
  Avoid warnings about sprintf() etc. being unsafe.
  Corrected typo "#endfif"

  Changed version to 4.1.20

  Backport of changes in 5.0 (bug#18294)