OSV-2017-113 Use-of-uninitialized-value in CommandData::IsProcessFile

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=4411 Crash type: Use-of-uninitialized-value Crash state: CommandData::IsProcessFile CmdExtract::ExtractCurrentFile CmdExtract::ExtractArchive...