Some `runtime_info` dumps to default fortran output file

[sbryngelson]

Running a case I get a file called fort.1, which is a default fortran output file when an output name is not indicated. In this case it includes some runtime info:

shb-m1pro-3: examples/1D_impact $ cat fort.1
--------------------------------------------------------------------------------

ICFL Max:  0.210141

Run-time: 0s
================================================================================