fix whitespace

Change-Id: I2911d2b5d1931c6f6245cc54465458a8a3c2b2bb

untrusted_app.te

@@ -101,4 +101,4 @@ neverallow untrusted_app property_type:property_service set;
 
 # Allow verifier to access staged apks.
 allow untrusted_app { apk_tmp_file apk_private_tmp_file }:dir r_dir_perms;
-allow untrusted_app { apk_tmp_file apk_private_tmp_file }:file r_file_perms;
\ No newline at end of file
+allow untrusted_app { apk_tmp_file apk_private_tmp_file }:file r_file_perms;