What do the special characters in the emapplog.txt file mean (such as +++ --- ***, etc.)? (NETIQKB30031)

goal
What do the special characters in the emapplog.txt file mean (such as +++ --- ***, etc.)?

fact
Exchange Migrator 2.x

fix
When you start EMDevLog and EMAppLog at the same time, the line numbers  correspond to entries in both log files. A three-character code in each line indicates the following message types:

• %%% Start of log for the current session.

• --- Status information.

• +++ Completed successfully.

• *** Not completed successfully.

• *++ Warning:

Formerly known as NETIQKB30031