[libvirt] logging: how about adding a ProcessName field in logging file?

[zhang bo]

Suppose there are 3 or more clients of libvirt:
1)nova
2)bash virsh commands
3)user customized ELF
4)etc....

The env LIBVIRT_DEBUG and LIBVIRT_LOG_OUTPUTS affects all of these clients, thus, they will all
accumulate the logs into *ONE* file set by LIBVIRT_LOG_OUTPUTS.

eg:
[2015-03-07 00:33:30]: 103674: info : virDomainShutdown:3242 : enter virDomainShutdown domainname=VMName
[2015-03-07 00:33:41]: 103674: info : virDomainShutdown:3253 : domain VMName shutted down
[2015-03-13 00:53:44]: 5073: info : libvirt version: 1.2.7
[2015-03-13 00:53:44]: 5034: info : libvirt version: 1.2.7
[2015-03-13 00:53:44]: 5073: error : virNetSocketReadWire:1475 : End of file while reading data: Input/output error

note:
103674: bash virsh command
5037: nova

if we don't know that 103674 is just a virsh command, and suspect that it's nova, time would be wasted to find out
who's the criminal.
The improved log would be:
[2015-03-07 00:33:30]: virsh: 103674: info : virDomainShutdown:3242 : enter virDomainShutdown domainname=VMName
[2015-03-07 00:33:41]: virsh: 103674: info : virDomainShutdown:3253 : domain VMName shutted down
[2015-03-13 00:53:44]: nova: 5073: info : libvirt version: 1.2.7
[2015-03-13 00:53:44]: myProc1: 5034: info : libvirt version: 1.2.7
[2015-03-13 00:53:44]: nova: error : virNetSocketReadWire:1475 : End of file while reading data: Input/output error

So, here's the qeustion:
Is it neccssary to add a ProcessName field in the logging file? if so, I'd like to apply a patch for this.

thank you in advance.