net-im/err: Revbump post dep changes

Signed-off-by: Michał Górny <mgorny@gentoo.org>

diff --git a/net-im/err/err-5.2.0.ebuild b/net-im/err/err-5.2.0-r1.ebuild
similarity index 100%
rename from net-im/err/err-5.2.0.ebuild
rename to net-im/err/err-5.2.0-r1.ebuild