Fix space issue in help message for user_storage_quota config parameter

[Pranali Deore]

 """.....Optional unit can be specified for the value. Accepted units are B, KB, MB, GB and TB representing Bytes, KiloBytes, MegaBytes, GigaBytes and TeraBytesrespectively......"

To

""".....Optional unit can be specified for the value. Accepted units are B, KB, MB, GB and TB representing Bytes, KiloBytes, MegaBytes, GigaBytes and TeraBytes respectively......"

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/123679

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/123679
Committed: https://git.openstack.org/cgit/openstack/glance/commit/?id=e875cb45146931adf5eec04b356d9ebe89858972
Submitter: Jenkins
Branch: master

commit e875cb45146931adf5eec04b356d9ebe89858972
Author: Pranali Deore <email address hidden>
Date: Wed Sep 24 03:09:41 2014 -0700

    Fix missing space in user_storage_quota help message

    Add a missing space in the help message for the user_storage_quota config
    parameter.

    Closes-Bug: #1373268
    Change-Id: I5462b85047ec322f9c795778fccbe4fd41365a98