Can't execute runc command when runc in ${PATH}

[hitsumabushi]

I can execute runc with the absolute path, however, execute runc as a command (type only "runc"), an error occur.

1. When execute with full path

   $ sudo /usr/local/bin/runc
   / $ 

2. When execute as a command
   /home/hitsu/work/runC is my working directory.

sudo runc
Timestamp: 2015-06-26 09:09:39.184956634 +0900 JST
Code: System error

Message: fork/exec /home/hitsu/work/runC/runc: no such file or directory

Frames:
---
0: start
Package: github.com/opencontainers/runc/libcontainer.(*initProcess)
File: process_linux.go@183
---
1: Start
Package: github.com/opencontainers/runc/libcontainer.(*linuxContainer)
File: container_linux.go@107
---
2: execContainer
Package: main
File: run.go@41
---
3: func·006
Package: main
File: main.go@89
---
4: Run
Package: github.com/codegangsta/cli.(*App)
File: app.go@159
---
5: main
Package: main
File: main.go@104
---
6: main
Package: runtime
File: proc.go@63
---
7: goexit
Package: runtime
File: asm_amd64.s@2232

[crosbymichael]

Fixed by #47