ktest: A working config-bisect and other updates

The big change here is that I rewrote the config-bisect test.

Now you can take two configs, one that works and one that does not, and it will bisect the two until it comes down to a single change that causes one to work and the other to fail.

I updated this because the latest kernel caused my min config to no longer boot the kernel built with allnoconfig. I was missing something. After rewriting this code (and making the code so much more simpler), it found the missing config without a problem.

Also some other clean ups and fixes.

-- Steve

git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest.git
for-next

Head SHA1: 4c16b1d6d5e0ca0612de65596a3d1ead8a3372fb

Satoru Takeuchi (2):
ktest: add 2nd parameter of run_command() to set the redirect target file
ktest: Some cleanup for improving readability

Steven Rostedt (Red Hat) (5):
ktest: Rewrite the config-bisect to actually work
ktest: Put back in the CONFIG_BISECT_CHECK
ktest: Remove unused functions
ktest: Add the config bisect manual back
ktest: Update documentation on config_bisect

----

 tools/testing/ktest/ktest.pl    | 581 +++++++++++++++++++---------------------
 tools/testing/ktest/sample.conf |  65 ++---
 2 files changed, 297 insertions(+), 349 deletions(-)