WL#3351: Add --log option to mysqld_safe

Affects: Connector/.NET-6.6   —   Status: Un-Assigned   —   Priority: Medium

mysqd has --log to specify a particular log file to write to. "mysqld_safe",
does not, and it would be very usefull if it did. I propose addeding
"--log=<logfilename>" to "mysqld_safe".