removed compiler warning

without trying to re-run autotools.

into mysql.com:/space/my/mysql-4.1

into poseidon.ndb.mysql.com:/home/tomas/mysql-4.1

shortened help text

into serg.mylan:/usr/home/serg/Abk/mysql-4.1

into poseidon.ndb.mysql.com:/home/tomas/mysql-4.1-ndb

into sanja.is.com.ua:/home/bell/mysql/bk/mysql-4.1

into poseidon.ndb.mysql.com:/home/tomas/mysql-4.1-ndb

into sanja.is.com.ua:/home/bell/mysql/bk/work-sub-4.1

  Char is unsigned by defeault on some platforms. Cast t to a signed type.

Fixed wrong range test code for HEAP tables. This caused a crash when doing a range test with a key that didn't have lower or upper bound (Bug #6082)
More test cases

  4.1.7 leaves gamma.

into serg.mylan:/usr/home/serg/Abk/mysql-4.1

into mysql.com:/home/mydev/mysql-4.1-bug6151

into mysql.com:/space/my/mysql-4.1

  Correcting problem with merge

into goetia.(none):/home/dellis/mysqlab/bk/mysql-4.1

into mysql.com:/home/mydev/mysql-4.1-bug6151

into mysql.com:/media/sda1/mysql/mysql-4.1-6088

function crashes server" with main tree.

prepared statements when LIMIT is used" and post-review comments.
The fix changes the approach we calculate the need for ORDER BY 
in UNION: the previous was not PS friendly, as it damaged SELECT_LEX 
options in case of single select.

  BUG #5831  Post-review changes, merging improvements from Monty.

into serg.mylan:/usr/home/serg/Abk/mysql-4.1