Send Aapt2Exception message to the logger.

Currently, if there are non-suppressed errors during aapt2 processing, Bazel does not print them.

This helps with debugging https://github.com/bazelbuild/bazel/pull/5222

With this, I get:

```
ERROR: /usr/local/google/home/jingwen/code/android_scratch_project/examples/android/java/bazel/BUILD:16:1: Processing Android resources for //examples/android/java/bazel:hello_world failed (Exit 1)
May 21, 2018 5:31:01 PM com.google.devtools.build.android.ResourceProcessorBusyBox main
SEVERE: java.io.IOException: Is a directory
Target //examples/android/java/bazel:hello_world failed to build
```

instead of just:

```
ERROR: /usr/local/google/home/jingwen/code/android_scratch_project/examples/android/java/bazel/BUILD:16:1: Processing Android resources for //examples/android/java/bazel:hello_world failed (Exit 1)
Target //examples/android/java/bazel:hello_world failed to build
```

RELNOTES: None.
PiperOrigin-RevId: 197493881

1 files changed, 1 insertions, 3 deletions

diff --git a/src/tools/android/java/com/google/devtools/build/android/ResourceProcessorBusyBox.java b/src/tools/android/java/com/google/devtools/build/android/ResourceProcessorBusyBox.java
index 32a17e7ddd..f22dec2740 100644
--- a/src/tools/android/java/com/google/devtools/build/android/ResourceProcessorBusyBox.java
+++ b/src/tools/android/java/com/google/devtools/build/android/ResourceProcessorBusyBox.java
@@ -191,11 +191,9 @@ public class ResourceProcessorBusyBox {
     Options options = optionsParser.getOptions(Options.class);
     try {
       options.tool.call(optionsParser.getResidue().toArray(new String[0]));
-    } catch (MergingException | IOException e) {
+    } catch (MergingException | IOException | Aapt2Exception e) {
       logger.severe(e.getMessage());
       logSuppressedAndExit(e);
-    } catch (Aapt2Exception e) {
-      logSuppressedAndExit(e);
     }
   }