mod_pocketsphinx: install default.dic with correct mode

src/mod/asr_tts/mod_pocketsphinx/Makefile

@@ -60,7 +60,7 @@ $(DESTDIR)$(grammardir)/model/communicator:
 	cp -rp $(switch_srcdir)/libs/Communicator_semi_40.cd_semi_6000/* $(DESTDIR)$(grammardir)/model/communicator
 
 dictionary:
-	@cp -f $(POCKETSPHINX_DIR)/model/lm/en_US/cmu07a.dic $(DESTDIR)$(grammardir)/default.dic
+	@install -m0644 $(POCKETSPHINX_DIR)/model/lm/en_US/cmu07a.dic $(DESTDIR)$(grammardir)/default.dic
 
 local_install: $(DESTDIR)$(grammardir)/model $(DESTDIR)$(grammardir)/model/communicator dictionary