dev-qt/qtcore: Safety bump

Follow-up to b0c83cbc03de177128888867bc4969e7a0ecf2d6

Package-Manager: Portage-2.3.81, Repoman-2.3.20
Signed-off-by: Andreas Sturmlechner <asturm@gentoo.org>

diff --git a/dev-qt/qtcore/qtcore-5.13.2.ebuild b/dev-qt/qtcore/qtcore-5.13.2-r1.ebuild
similarity index 100%
rename from dev-qt/qtcore/qtcore-5.13.2.ebuild
rename to dev-qt/qtcore/qtcore-5.13.2-r1.ebuild