This command will build your dist with Dist::Zilla, then build the
distribution and then run a command in the build directory. Its something
like doing this:
rsync -avp My-Project-version/ .build/
perl Makefile.PL # or perl Build.PL
make # or ./Build
<your command as defined by rest of params>
Except for the fact its built directly in a subdir of .build (like
A command returning with an non-zero error code will left the build directory
behind for analysis, and dzil will exit with a non-zero status. Otherwise,
the build directory will be removed and dzil will exit with status zero.
If no run command is provided, a new default shell is invoked. This can be
useful for testing your distribution as if it were installed.