Avoid printing // for packages that install to /
Avoid printing // for packages that install to /

I have some packages that install to / (for whatever reason).  Right now we
print entries of the form //path/to/file when listing files (pkg_info -L,
pkg_info -g etc.)  This change avoids printing the redundant / .

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase