CL 11981 changed the Android logcat prefix from "GoLog" to "GoStdio".
Revert the prefix to "GoLog".
Also remove a global variable left unused by CL 11981.
Change-Id: I500313652cd618d8573640d5165e5069a0ba0ba7
Reviewed-on: https://go-review.googlesource.com/11991
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Package app contains some logic that we want to share with
gobind-based libraries. So move it to a new internal package
that both can import.
Long term the log changes should be in the standard library,
but the Go tree is currently frozen.
Fixesgolang/go#11630.
Change-Id: I9ff622fc499bf255bce18df23cb68b03f667947f
Reviewed-on: https://go-review.googlesource.com/11981
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
