Diff between using "-i" and not using "-i"

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Hi,

Version: sync  version 3.3.0  protocol version 31

If I do a <rsync -avhHXASDn --del  /mnt/ /foo/mnt/>

I get:
=================
sending incremental file list
var/log/journal/

sent 263,31K bytes  received 1,14K bytes  528,90K bytes/sec
total size is 294,92M  speedup is 1.115,21 (DRY RUN)
=================

including option <-i>:

rsync -avhHXASDin --del  /mnt/ /foo/mnt/

I get:
=================
sending incremental file list
.f........x usr/bin/ping
.d.......a. var/log/journal/

sent 263,31K bytes  received 1,14K bytes  528,90K bytes/sec
total size is 294,92M  speedup is 1.115,21 (DRY RUN)
=================

How is that, that "usr/bin/ping" is not included / included in
results? That is no feature, is it?

Yours lopiuh