Comment # 1 on bug 1075024 from Michal Srb

That symlink is intentional, it was added long time ago for compatibility. X
related binaries used to be in /usr/bin/X11/ directory and then were moved to
/usr/bin/ and this symlink was made:
https://bugzilla.opensuse.org/show_bug.cgi?id=223524

That was year 2006. Maybe it could be removed today.

On the other hand, I would say clamd should not get confused by such symlinks.