lib: revise list_sort() header comment
lib: revise list_sort() header comment

Clarify and correct header comment of list_sort().

Signed-off-by: Don Mullis <cdc97ab7c67399d4b6832c97d9e51baf57fa0802@gmail.com>
Cc: Dave Airlie <f2295d84e358395675bc8031be58672073ae065e@redhat.com>
Cc: Andi Kleen <dbd122ef7b6a09ffecf5db9c9296320f3c94e707@firstfloor.org>
Cc: Dave Chinner <aa743a0aaec8f7d7a1f01442503957f4d7a2d634@fromorbit.com>
Cc: Artem Bityutskiy <e9e216302cf029bb622c0383fe00c08402269f9b@infradead.org>
Signed-off-by: Andrew Morton <5c1e68b099950c134891f0b6e179498a8ebe9cf9@linux-foundation.org>
Signed-off-by: Linus Torvalds <69652caca27c8b940640ad396ab71f93cacec34f@linux-foundation.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas