'Show'ing dotted versions

[davesteele]

'show' doesn't work with dotted versions.

$ shoogle show prediction
prediction:v1.2 - Prediction API
prediction:v1.3 - Prediction API
prediction:v1.4 - Prediction API
prediction:v1.5 - Prediction API
prediction:v1.6 - Prediction API

$ shoogle show prediction:v1.2
[ERROR] Service API not found: prediction:v1

$ shoogle show prediction:v1\.2
[ERROR] Service API not found: prediction:v1

$ shoogle show prediction:v1\\.2
[ERROR] Service API not found: prediction:v1\

$ shoogle show "prediction:v1.2"
[ERROR] Service API not found: prediction:v1

$ shoogle show "prediction:v1\.2"
[ERROR] Service API not found: prediction:v1\

$ shoogle show vision:v1
vision:v1 - Cloud Vision API
vision:v1p1beta1 - Cloud Vision API
vision:v1p2beta1 - Cloud Vision API