Exported .repos file is not right format for vcs to import.

[jpace121]

When using the --format repos option, the generated file is missing the repositories: key on top of the generated file, which means that vcs can't import the file.

For example:

rosinstall_generator ros_base --format repos --rosdistro foxy --deps > /tmp/test.repos
vcs import src/ < /tmp/test.repos

Generates the warning:

Input data is not valid format: 'repositories'

from vcs.

[jpace121]

I'm an idiot and filed this in wrong place. This was supposed to be filed in rosinstall_generator...