Help crashes if specified plugin does not exist

[sergiusens]

daniel@daydream:/dev/snappy/snapcraft$ ./bin/snapcraft help plugin
The plugin does not exist. Use one of the following:
ant
autotools
catkin
cmake
copy
go
jdk
make
maven
python2
python3
qml
roscore
scons
tar-content
Traceback (most recent call last):
File "./bin/snapcraft", line 33, in
snapcraft.main.main()
File "/home/daniel/dev/snappy/snapcraft/snapcraft/main.py", line 115, in main
args.func(args)
File "/home/daniel/dev/snappy/snapcraft/snapcraft/help.py", line 50, in topic
_module_help(args.topic, args.devel)
File "/home/daniel/dev/snappy/snapcraft/snapcraft/help.py", line 68, in _module_help
if module.doc and devel:
UnboundLocalError: local variable 'module' referenced before assignment
daniel@daydream:/dev/snappy/snapcraft$

Launchpad Details: #LP1510954 Daniel Holbach - 2015-10-28 11:19:12 -0300

[sergiusens]

Confirmed that there is no traceback anymore.

Launchpad Details: #LPC Leo Arias - 2015-10-29 01:14:22 -0300