os: don't repeat dir argument in CreateTemp error

The dir argument is already in prefix, we shouldn't add it again.

Change-Id: I42a158bec3a43950fce24f57b808da3ad8c5ef5b
Reviewed-on: https://go-review.googlesource.com/c/go/+/383636
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

diff --git a/src/os/tempfile.go b/src/os/tempfile.go
index 5b681fcebfea1799decbbd709a6ca6ee304215ef..3be3d13dfb9c7f4c4555ca124115aac51be61008 100644 (file)
--- a/src/os/tempfile.go
+++ b/src/os/tempfile.go
@@ -46,7 +46,7 @@ func CreateTemp(dir, pattern string) (*File, error) {
                        if try++; try < 10000 {
                                continue
                        }
-                       return nil, &PathError{Op: "createtemp", Path: dir + string(PathSeparator) + prefix + "*" + suffix, Err: ErrExist}
+                       return nil, &PathError{Op: "createtemp", Path: prefix + "*" + suffix, Err: ErrExist}
                }
                return f, err
        }