tree 09de223000ef5752db34385b0a3ae6a5a9fc5fbc
parent 166500ace84255f49814f2d610432ad41fc00d38
author guo yunxian <yunxian.guo@easystack.cn> 1478078802 +0800
committer guo yunxian <yunxian.guo@easystack.cn> 1478081608 +0800

Use InvalidCredentials exception from correct path

InvalidCredentials is in tempest/lib/exceptions.py, not in
tempest/exceptions.py. This patch is to use it from correct path.

Change-Id: I2319dce4f1b5a18707b1e7b51635f4f9e93494be