alter sql.php prompt on line continuation
As long as a command is not ended with a database delimiter, sql.php
kept appending the line without noticing the users. That is a bit
confusing since you might not even know what you are going to run when
entering the delimiter.
This patch alter the prompt to ' ->' until the command is finished.
That is more in line with how MySQL cli handles it.
Example:
$ php sql.php
> SELECT
-> *
-> from
-> job;
Query OK, 0 row(s) affected
// repeal command:
> SELECT * from job
Change-Id: Ic18b39d75d4db48d37d485e66f36d691e95934fb