liblog: return 0 from android_logger_list_read() when recv() returns 0

We used to do this, but it got lost while refactoring this code.

Bug: 144311420
Test: we see "unexpected EOF!" instead of "unexpected length" from logcat
Change-Id: I7858d0a774a9eac63e5547ee67e85ef8fb0c682d
1 file changed