build-sys: release++ (-rc2)

Increment release number to v2.13.1-rc2

Signed-off-by: Karel Zak <kzak@redhat.com>
diff --git a/NEWS b/NEWS
index d07710a..a34f96d 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,8 @@
+util-linux-ng 2.13.1-rc2
+
+* see docs/v2.13.1-ReleaseNotes or complete changelog at
+  ftp://ftp.kernel.org/pub/linux/utils/util-linux-ng/v2.13/v2.13.1-rc2-ChangeLog
+
 util-linux-ng 2.13.1-rc1
 
 * see docs/v2.13.1-ReleaseNotes or complete changelog at
diff --git a/configure.ac b/configure.ac
index 16c897c..52d709f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-AC_INIT(util-linux-ng, 2.13.1-rc1, kzak@redhat.com)
+AC_INIT(util-linux-ng, 2.13.1-rc2, kzak@redhat.com)
 
 AC_PREREQ(2.59)