From: Rob Pike <r@golang.org>
Date: Thu, 20 Feb 2014 01:17:36 +0000 (-0800)
Subject: syscall: terminate error string in exec package on Plan 9
X-Git-Tag: go1.3beta1~642
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=3e37720bcebefe87459a7dd8f41164c0e2cfa4bc;p=gostls13.git

syscall: terminate error string in exec package on Plan 9
Try to prevent messages like this:
        './pack' file does not exist����������������������������������������������������������������������������������������������������
TBR=adonovan

LGTM=adonovan
R=adonovan
CC=golang-codereviews
https://golang.org/cl/66270043
---

diff --git a/src/pkg/syscall/exec_plan9.go b/src/pkg/syscall/exec_plan9.go
index 99ad2f1588..45ee542bb0 100644
--- a/src/pkg/syscall/exec_plan9.go
+++ b/src/pkg/syscall/exec_plan9.go
@@ -486,7 +486,7 @@ func forkExec(argv0 string, argv []string, attr *ProcAttr) (pid int, err error)
 
 	if err != nil || n != 0 {
 		if n != 0 {
-			err = NewError(string(errbuf[:]))
+			err = NewError(string(errbuf[:n]))
 		}
 
 		// Child failed; wait for it to exit, to make sure