Using proper fd for pendingsReads.

Legacy code was using cmd(). It worked, but better to use an approved
field.

Bug: 153874006
Test: atest PackageManagerShellCommandTest PackageManagerShellCommandIncrementalTest IncrementalServiceTest
Change-Id: Ia0646c91265a1fe0c12a1a58fdafa0a5bee04014
1 file changed
tree: f8721dba097d1f3bdb3b8d0b1b1ad1fcf43b050f
  1. incfs/
  2. libdataloader/
  3. sysprop/
  4. .clang-format
  5. PREUPLOAD.cfg