Bug for sv status in lsb mode

[Mathieu Poumeyrol <kali@zoy.org>]

Hello there,

I have tracked down a bug in the lsb-compatible code for sv status:   
sv return 0 even if the service is down.

The variable r in the "status" function in the sv.c file is global,  
and altered in the curse of the function, making the last test  
useless. From what I have seen, saving the status in a local variable  
instead of using the global r solve the issue, but I don't know if  
this fix is without side-effect.

I hope somebody can fix this in a proper way and push the changes.

Thanks !