libgo: Update to October 24 version of master library.

From-SVN: r204466

1 files changed, 2 insertions, 12 deletions

diff --git a/libgo/go/strings/strings.go b/libgo/go/strings/strings.go
index 986f6d6..5d46211 100644
--- a/libgo/go/strings/strings.go
+++ b/libgo/go/strings/strings.go
@@ -130,14 +130,7 @@ func Index(s, sep string) int {
 	case n == 0:
 		return 0
 	case n == 1:
-		c := sep[0]
-		// special case worth making fast
-		for i := 0; i < len(s); i++ {
-			if s[i] == c {
-				return i
-			}
-		}
-		return -1
+		return IndexByte(s, sep[0])
 	case n == len(s):
 		if sep == s {
 			return 0
@@ -432,10 +425,7 @@ func Repeat(s string, count int) string {
 	b := make([]byte, len(s)*count)
 	bp := 0
 	for i := 0; i < count; i++ {
-		for j := 0; j < len(s); j++ {
-			b[bp] = s[j]
-			bp++
-		}
+		bp += copy(b[bp:], s)
 	}
 	return string(b)
 }