fix some small bugs, slightly improve output, add --help

into  asksasha.com:/reiser-data/mysql-dev/mysql-4.1-bug7947

into  mysql.com:/home/jimw/my/mysql-4.1-clean

into  mysql.com:/home/mysql_src/mysql-4.1

"Item_date_add_interval needs to have the int_type member as Public".
As explained in the bug report, this change is is to help http://search.cpan.org/~philips/DBIx-MyParse-0.20/
So please keep those members public.

non-deterministic result in the test case for BUG#7947
the bug fix for BUG#7947 now fixed the result of mix_innodb_myisam_binlog test, which
in the past was missing DO RELEASE_LOCK() in the output of SHOW BINLOG EVENTS

into mysql.com:/home/psergey/mysql-4.1-nov08-push

into mysql.com:/home/psergey/mysql-4.1-nov08-push

into  asksasha.com:/reiser-data/mysql-dev/mysql-4.1-bug7947

transaction while holding the lock. Also test to make sure other binlogging issues
reported in the bug have been addressed.

into  mysql.com:/home/cps/mysql/trees/mysql-4.1

when calculating table->null_fields.

  Always use bundled zlib

into  ua141d10.elisa.omakaista.fi:/home/my/bk/mysql-4.1

into mysql.com:/home/hf/work/mysql-4.1.14183

into  mysql.com:/home/jimw/my/mysql-4.1-clean

into mysql.com:/data0/mysqldev/lenz/mysql-4.1

into moonbone.local:/work/14186-bug-4.1-mysql

Removed wrong fix for bug #14009 (use of abs() on null value causes problems with filesort)
Mark that add_time(), time_diff() and str_to_date() can return null values

into  mysql.com:/usr/home/ram/work/mysql-4.1

even when --ledir option is specified. (Bug #13774)

get real results after all checks.
(see bug #14254: func_crypt.test fails on FreeBSD with --ps-protocol).

into deer.(none):/home/hf/work/mysql-4.1.12839

into  mysql.com:/home/jimw/my/mysql-4.1-clean

into  mysql.com:/home/jimw/my/mysql-4.1-clean

into  krsna.patg.net:/home/patg/mysql-build/mysql-4.1