tools: timing: Correctly enable the tool with --long-timing

The command line option --long-timing should enable the timing tool
which wasn't done correctly. With this commit the tool now comes up
correctly as expected.

The enabled output is now correct too. There were some brackets missing.
Which resulted in an incorrect formatted string.
lib: table: Fix error in print method.

The print method used some variables which were renamed during a
refactoring step, but not correctly which resulted in an error during
the run.