A number of message strings contain embedded Git or Git LFS
commands, and while in many cases these are already delimited
with backticks, in other cases they are not.
We therefore rework the formatting of these messages to accord
with the general practice of using backticks to delimit "git"
and "git lfs" commands.
In one case for the "git lfs clone" command this requires us
to split a multi-line message into several parts, but that
also has the advantage that we can move some of the fixed
formatting and newlines out of the translatable message strings.
Note that some of these messages are not yet passed as translation
strings, but we will address that issue in a subsequent commit.
