sort: make return value for 'not found' clearer in docs It was well-defined but easy to miss that the return value for "not found" is len(input) not -1 as many expect.
sort: make return value for 'not found' clearer in docs
It was well-defined but easy to miss that the return value for
"not found" is len(input) not -1 as many expect.

Fixes issue 4205.

R=golang-dev, dsymonds
CC=golang-dev
http://codereview.appspot.com/6820080
abustany/go,abustany/go,abustany/go,abustany/go,abustany/go,abustany/go,abustany/go