since the module API is changing, it's a good time to const-ify the description() and key() return values

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@18552 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_privacy.c

@@ -229,8 +229,7 @@ load_module (void)
 				   descrip);
 }
 
-char *
-description (void)
+const char *description(void)
 {
   return tdesc;
 }
@@ -243,8 +242,7 @@ usecount (void)
   return res;
 }
 
-char *
-key ()
+const char *key()
 {
   return ASTERISK_GPL_KEY;
 }