net: make lookupPort case-insensitive on Plan 9

The CL 28951 added TestLookupPort_Minimal, which was failing
on Plan 9, because lookupPort was not case-insensitive.

Change-Id: Ic80dd29dad4ffd1c84c2590e3d5d0e588ab2e6c2
Reviewed-on: https://go-review.googlesource.com/29051
TryBot-Result: Gobot Gobot <gobot@golang.org>
Run-TryBot: David du Colombier <0intro@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

diff --git a/src/net/lookup_plan9.go b/src/net/lookup_plan9.go
index 133a6198b9e96407bcc382b63344b843ce92b83d..2d974146cd83b13e7cdcaf5609871c7eee44b8d9 100644 (file)
--- a/src/net/lookup_plan9.go
+++ b/src/net/lookup_plan9.go
@@ -170,7 +170,7 @@ func lookupPort(ctx context.Context, network, service string) (port int, err err
        case "udp4", "udp6":
                network = "udp"
        }
-       lines, err := queryCS(ctx, network, "127.0.0.1", service)
+       lines, err := queryCS(ctx, network, "127.0.0.1", toLower(service))
        if err != nil {
                return
        }