RFE: distinguish qmtest failure and test failures in qmtest's return value

[Stefan Seefeld]

hi there,

I'm trying to execute 'qmtest run' from within a Makefile. Unfortunately
with the current qmtest code base there is no way to detect whether
qmtest's execution itself failed (say, because the 'qmtest' command
couldn't be found) or whether the error stems from an (unexpected)
failure of a test execution.

qmtest should use different return codes to indicate the type of
failure, such as '-1' for an internal error and any other non-zero
number to indicate test failures. Then I can write my Makefile to
just ignore failed tests as I deal with these failures on a different
level.

Thanks,
		Stefan