wrapper: print android-llvm@ when using the Android wrapper.

Otherwise, the wrapper might say:

```
Internal error. Please report to chromeos-toolchain@google.com.
```

to Android developers in some cases.

BUG=b:159291805
TEST=`go test`

Change-Id: I9a96068f02a2c6ce5e251c8754e267dfb1a30db1
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/toolchain-utils/+/2252553
Reviewed-by: Manoj Gupta <manojgupta@chromium.org>
Tested-by: George Burgess <gbiv@chromium.org>
diff --git a/compiler_wrapper/compiler_wrapper.go b/compiler_wrapper/compiler_wrapper.go
index a7b87dc..4c3db14 100644
--- a/compiler_wrapper/compiler_wrapper.go
+++ b/compiler_wrapper/compiler_wrapper.go
@@ -239,9 +239,13 @@
 	if _, ok := compilerErr.(userError); ok {
 		fmt.Fprintf(writer, "%s\n", compilerErr)
 	} else {
+		emailAccount := "chromeos-toolchain"
+		if isAndroidConfig() {
+			emailAccount = "android-llvm"
+		}
 		fmt.Fprintf(writer,
-			"Internal error. Please report to chromeos-toolchain@google.com.\n%s\n",
-			compilerErr)
+			"Internal error. Please report to %s@google.com.\n%s\n",
+			emailAccount, compilerErr)
 	}
 }