As suggested, convert internally to value of build_thread

delimiter not executed so does not recognize end of block
Always execute delimiter command, revert after false if() block.

valgrind pointed to a buffer allocated by my_realloc which looked fishy
Replaced size with what was probably intended, added test case.
Now also fixed line after review comment

Since the exec command line is passed on externally, it cannot take newlines
Simply replace \n with space
Now also added test case

- The arguments are properly quoted when mtr.pl calls my_safe_process but
  unfortunately the all off when running with active state perl and stays
  in cygwin perl.
- Extend the patch to only quote args that are not already quoted
This a redo of previous commit, will be included in next push

Undid amendment allowing pending reap after switching connections
Moved check for pending reap earlier; failed if running with ps-protocol

Small amendment: ignore pending reap when switching connection, add test

Added them
NB the 6th case is adapted to Bug no. 49269, gives wrong output without it

Set a flag after send to trap the case

Implemented --lowercase_result which lower cases next result

Was available in v1
Porting to v2 required some rewriting
Updated after review comments

Combinations beginning with -- not allowed
Allow them...

Combinations beginning with -- not allowed
Allow them...

into mysql-trunk-bugfixing.

Original revision:
------------------------------------------------------------
revision-id: vvaintroub@mysql.com-20091222115311-bam0xorumd8gvjyo
parent: mattias.jonsson@sun.com-20091221104426-x2e6c93x8iik4fo0
committer: Vladislav Vaintroub <vvaintroub@mysql.com>
branch nick: mysql-next-mr-bugfixing
timestamp: Tue 2009-12-22 12:53:11 +0100
message:
  Bug#49834 - fixed a bug introduced by mismerge.
  restore original innobase version
------------------------------------------------------------

by shared embedded library)

Conflicts:
  - storage/ibmdb2i/ha_ibmdb2i.cc