yast2-migration-sle.noarch: W: desktopfile-without-binary /usr/share/applications/YaST2/org.opensuse.yast.Migration-SLE.desktop xdg-su
the .desktop file is for a file not present in the package. You should check
the requires or see if this is not a error

yast2-migration-sle.noarch: W: no-version-in-last-changelog
yast2-migration-sle.src: W: no-version-in-last-changelog
The latest changelog entry doesn't contain a version. Please insert the
version that is coherent with the version of the package and rebuild it.

yast2-migration-sle.noarch: W: standard-dir-owned-by-package /usr/share/icons
This package owns a directory that is part of the standard hierarchy, which
can lead to default directory permissions or ownerships being changed to
something non-standard.

yast2-migration-sle.noarch: W: wrong-file-end-of-line-encoding /usr/share/doc/packages/yast2-migration-sle/README.md
This file has wrong end-of-line encoding, usually caused by creation or
modification on a non-Unix system. It could prevent it from being displayed
correctly in some circumstances.

2 packages and 0 specfiles checked; 0 errors, 5 warnings.