You can not select more than 25 topicsTopics must start with a chinese character,a letter or number, can include dashes ('-') and can be up to 35 characters long.
Extend the run_output_test() function so we actually can pass command line
parameters and so we can support different output files for the same test
executable.
Also provide some hints about what to do if a test fails (i.e. set VERBOSE=1).