Use --fast-read mode to extract metadata from package file. Since metadata files are located at the very beginning of the package, this patch in conjuction with latest tar(1) --fast-mode fix greatly speeds up pkg_info(1) operation on package files.
Use --fast-read mode to extract metadata from package file. Since metadata
files are located at the very beginning of the package, this patch in
conjuction with latest tar(1) --fast-mode fix greatly speeds up pkg_info(1)
operation on package files.

MFC after:	1 week

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