initialize.mk: accounting for no maneage branch

One of the LaTeX macros reported by 'initialize.mk' is the git commit hash
of the most recent 'maneage' branch that the project has been branched
from. However, not all projects will retain the maneage reference. This can
happen for example when people don't push the 'maneage' reference to their
repository and then clone from their own repository to a second
computer. Therefore, until now, in such situations, Maneage would break
with an error.

With this commit, in such scenarios, a place holder string is used instead,
clearly highlighting that there is no 'maneage' reference.

0 files changed, 0 insertions, 0 deletions