Testcases: Use AnyEvent::I3 version 0.15

Use the latest version of AnyEvent::I3, version 0.15, which includes
support for the `window` event tag.

diff --git a/testcases/Makefile.PL b/testcases/Makefile.PL
index 1a9b19cf26e85e4ff4dd6c1ad4fa12e0732fc176..6bc80d8f3ded97c86f5a76b4e9db7e830c3787b7 100755 (executable)
--- a/testcases/Makefile.PL
+++ b/testcases/Makefile.PL
@@ -8,7 +8,7 @@ WriteMakefile(
     MIN_PERL_VERSION => '5.010000', # 5.10.0
     PREREQ_PM => {
         'AnyEvent'     => 0,
-        'AnyEvent::I3' => '0.14',
+        'AnyEvent::I3' => '0.15',
         'X11::XCB'     => '0.09',
         'Inline'       => 0,
         'ExtUtils::PkgConfig' => 0,