bytes: fix Cut godoc typo

If sep does not appear in s, we return nil here
rather than the empty string. Presumably the docs
were copied from the  strings package implementation
and brought that along.

Change-Id: I3706c94fe04abd9e2a2c8840f7cc6116386965c8
Reviewed-on: https://go-review.googlesource.com/c/go/+/354969
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Alexander Rakoczy <alex@golang.org>

diff --git a/src/bytes/bytes.go b/src/bytes/bytes.go
index d3e01c3de7b90edd655c7619652dec64e3932a28..926f65cc8f854e23794779758ecd45a894747236 100644 (file)
--- a/src/bytes/bytes.go
+++ b/src/bytes/bytes.go
@@ -1260,7 +1260,7 @@ func Index(s, sep []byte) int {
 // Cut slices s around the first instance of sep,
 // returning the text before and after sep.
 // The found result reports whether sep appears in s.
-// If sep does not appear in s, cut returns s, "", false.
+// If sep does not appear in s, cut returns s, nil, false.
 //
 // Cut returns slices of the original slice s, not copies.
 func Cut(s, sep []byte) (before, after []byte, found bool) {