Open all ftrace_reader files with O_CLOEXEC.
Open all ftrace_reader files with O_CLOEXEC.

Bug: 71745415
Change-Id: I320ccfa40ef79c21b55692f33dee239be9be8010
google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto