Improve the output message when a lockfile does not have an absolute path

[gtkramer]

Is your feature request related to a problem? Please describe. Supplying --log-file aws.log to clr-installer results in the following message:

Cannot initialize lock. reason: Lockfiles must be given as absolute path names
Lockfiles must be given as absolute path names

Describe the solution you'd like The output should mention that the lock file is controlled by the log file and that the log file needs to be an absolute path.

Describe alternatives you've considered N/A

Additional context N/A

[willtoth]

Is there any more detail on this? I see this error message when trying to build an image, but I see no details on exactly what is failing where, or how to fix it.

Moved the description to #797 797