Look up full mosdepth via get_program()
Look up full mosdepth via get_program()

This is the idiomatic way to make sure we are calling the
bcbio-installed version of the program.

chapmanb/bcbio-nextgen,chapmanb/bcbio-nextgen,chapmanb/bcbio-nextgen,lbeltrame/bcbio-nextgen,lbeltrame/bcbio-nextgen,lbeltrame/bcbio-nextgen