git-dch question

[Corey Quinn]

As a followup to my previous packaging questions, I've gotten a working debian package to build.

However, as I attempt to automate it within Jenkins, I'm running into this error:

+ git-dch --verbose --auto --debian-branch=master --snapshot --id-length=8 --snapshot-number=53
You are not on branch 'master' but on '(no branch)'
Use --debian-branch to set the branch to pick changes from

The Jenkins folks tell me that doing a "git checkout master" first isn't the right way to do it, so… what am I missing?

-- Corey