Description of problem:

"--client-pid" glusterfs client option is ignored

Version-Release number of selected component (if applicable):

http://review.gluster.com/3698 onwards

How reproducible:

Absolutely

Steps to Reproduce:
1. set up glusterfs, create a volume called, say, "poc"
2. gluster vol set poc indexing on
2. mount poc with this command:
   glusterfs -s localhost --volfile-id=poc --client-pid=-1 /mnt/gluster
3. getfattr -h -m. -ehex -n trusted.glusterfs.volume-mark /mnt/gluster
  
Actual results:

/mnt/gluster/: trusted.glusterfs.volume-mark: No such attribute

Expected results:

# file: mnt/gluster
trusted.glusterfs.volume-mark=0x010005de301e337a4d9bb03d31cdca9ffc4200502a397500047464