AAPT2: Few tweaks to get shared-libraries working

Test: manual (building shared support library demo)
Change-Id: I4730645aa92ba1893baf67ffe35fbd4aac0f8e46
diff --git a/tools/aapt2/link/ReferenceLinker.cpp b/tools/aapt2/link/ReferenceLinker.cpp
index 4a42826..0331313 100644
--- a/tools/aapt2/link/ReferenceLinker.cpp
+++ b/tools/aapt2/link/ReferenceLinker.cpp
@@ -122,8 +122,7 @@
           DiagMessage msg(entry.key.GetSource());
 
           // Call the matches method again, this time with a DiagMessage so we
-          // fill
-          // in the actual error message.
+          // fill in the actual error message.
           symbol->attribute->Matches(entry.value.get(), &msg);
           context_->GetDiagnostics()->Error(msg);
           error_ = true;