WebAdmin: fix upload plugin. Thanks to Dave Abrahams for the patch!
WebAdmin: fix upload plugin. Thanks to Dave Abrahams for the patch!


Closes #3168.

git-svn-id: 0d96b0c1a6983ccc08b3732614f4d6bfcf9cbb42@5752 af82e41b-90c4-0310-8c96-b1721e28e2e2

rbaumg/trac,rbaumg/trac,rbaumg/trac,rbaumg/trac