Typo fix and sentence cleanup in post-commit script.

Subject: bk commit into 4.0 tree

Below is the list of changes that have just been committed into a

4.0 repository of $USER. When $USER does a push, they will be propogated to 

the main repository and within 24 hours after the push to the public repository. 

4.0 repository of $USER. When $USER does a push these changes will

be propagated to the main repository and, within 24 hours after the

push, to the public repository.

For information on how to access the public repository

see http://www.mysql.com/doc/I/n/Installing_source_tree.html