[Bug fortran/60462] get_command returns more than it should

[fkrogh#gcc at mathalacarte dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60462

--- Comment #1 from Fred Krogh <fkrogh#gcc at mathalacarte dot com> ---
With this command line

./tapt -u ./mps afiro

it gives

/home/m/math77/lin/cons/anypoint/tapt ./tapt -u ./mps afiro

The standard makes no mention of providing the first part of what is here.
That first part is the full path for the command.