When generating docs, the modules listed under api all seem to be
missing the first letter after "cinder." at the beginning.
Change-Id: I924e55642350d3bb813ebab7cb978915fdd8b964
Closes-bug: #1408828
When running 'find cinder/' on OSX platforms, all returned paths
will have 2 slashes (//). Because the script only strips
the first slash as per the CINDER_DIR value, we end up
with module names such as "cinder..db.api" in the documentation.
This change trims the leading dot if found to avoid this situation.
Change-Id: I9423b253d9842295850f469757e928bf5856967a