Fix some bad logging in dex2oat

Change-Id: Ia193f4e58f1426f509f8559aaf67689b177c2f41
diff --git a/src/dex2oat.cc b/src/dex2oat.cc
index cce9276..ed7bd88 100644
--- a/src/dex2oat.cc
+++ b/src/dex2oat.cc
@@ -799,7 +799,7 @@
   if (android_root.empty()) {
     const char* android_root_env_var = getenv("ANDROID_ROOT");
     if (android_root_env_var == NULL) {
-      Usage("--android_root unspecified and ANDROID_ROOT not set");
+      Usage("--android-root unspecified and ANDROID_ROOT not set");
     }
     android_root += android_root_env_var;
   }
@@ -1074,7 +1074,7 @@
   compiler->StripElf(oat_file.get());
 
   // We wrote the oat file successfully, and want to keep it.
-  LOG(INFO) << "Oat file written successfully (stripped): " << oat_stripped;
+  LOG(INFO) << "Oat file written successfully (stripped): " << oat_location;
   return EXIT_SUCCESS;
 }