Fix perforce posting from subdirectories of the client root.
Review Request #5390 — Created Feb. 3, 2014 and submitted
Fix perforce posting from subdirectories of the client root.
The logic that checked whether we were inside a p4 client was adding
os.path.pathsep to the path name instead of os.path.sep. This meant that we'd
only match if the cwd was the client root.
Made a subdirectory in a p4 client and posted a change.
