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-rw-r--r--t/nntp_ipv6.t1
-rw-r--r--t/pop3_ipv6.t1
-rw-r--r--t/smtp_ipv6.t1
3 files changed, 3 insertions, 0 deletions
diff --git a/t/nntp_ipv6.t b/t/nntp_ipv6.t
index 1992618..768489a 100644
--- a/t/nntp_ipv6.t
+++ b/t/nntp_ipv6.t
@@ -63,4 +63,5 @@ sub nntp_server {
     }
   }
   note("NNTP dialog done");
+  return 0;
 }
diff --git a/t/pop3_ipv6.t b/t/pop3_ipv6.t
index 1c88c1a..db31128 100644
--- a/t/pop3_ipv6.t
+++ b/t/pop3_ipv6.t
@@ -63,4 +63,5 @@ sub pop3_server {
   }
 
   note("POP3 dialog done");
+  return 0;
 }
diff --git a/t/smtp_ipv6.t b/t/smtp_ipv6.t
index a31b6ff..f430721 100644
--- a/t/smtp_ipv6.t
+++ b/t/smtp_ipv6.t
@@ -65,4 +65,5 @@ sub smtp_server {
   }
 
   note("SMTP dialog done");
+  return 0;
 }