Test on 5.28 in Travis

diff --git a/.travis.yml b/.travis.yml
index f4b11d4..acf1df2 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,6 +9,7 @@ language: perl
 perl:
   - "blead"
   - "dev"
+  - "5.28"
   - "5.26"
   - "5.24"
   - "5.22"