[LTP] [PATCH] lib: Fix result propagation after exec() + tst_reinit()

[Jan Stancek]

----- Original Message -----
> The result pointer wasn't initialized in tst_reinit(), which haven't
> allowed for test result propagation to the main test process and there
> is actually no reason not to do that. So this commit initializes the
> results pointer in tst_reinit() and also adds a child_needs_reinit flag
> to tst_test structure, which causes the library not to unlink the IPC
> file after it has been mapped and also inserts LTP_IPC_PATH to the
> environment.
> 
> This commit also adds a test that also shows the usage of the API and
> documentation.
> 
> Signed-off-by: Cyril Hrubis <chrubis@suse.cz>
> CC: Eddie Horng <eddiehorng.tw@gmail.com>

ack