Hotfixes support is ready, pull again :)

I forgot checkpatch.pl ago, below are current results of checkpatch.pl:

WARNING: printk() should include KERN_ facility level
#238: FILE: arch/x86/kernel/hotfixes.c:130:
+			printk(" %x", *(((unsigned char *)h->addr)+i));

ERROR: Missing Signed-off-by: line(s)

total: 1 errors, 1 warnings, 495 lines checked

a has style problems, please review.  If any of these errors
are false positives report them to the maintainer, see
CHECKPATCH in MAINTAINERS.