fix wrong typo

Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
diff --git a/tests/opt-testcases/tls13-kex-modes.sh b/tests/opt-testcases/tls13-kex-modes.sh
index 6c0489a..c8586d2 100755
--- a/tests/opt-testcases/tls13-kex-modes.sh
+++ b/tests/opt-testcases/tls13-kex-modes.sh
@@ -118,7 +118,7 @@
          -s "ticket is not authentic" \
          -S "ticket is expired" \
          -S "Invalid ticket start time" \
-         -S "Ticket age exceed limitation" \
+         -S "Ticket age exceeds limitation" \
          -S "Ticket age outside tolerance window"
 
 requires_all_configs_enabled MBEDTLS_SSL_PROTO_TLS1_3 MBEDTLS_SSL_SESSION_TICKETS MBEDTLS_SSL_SRV_C \
@@ -139,7 +139,7 @@
          -S "ticket is not authentic" \
          -s "ticket is expired" \
          -S "Invalid ticket start time" \
-         -S "Ticket age exceed limitation" \
+         -S "Ticket age exceeds limitation" \
          -S "Ticket age outside tolerance window"
 
 requires_all_configs_enabled MBEDTLS_SSL_PROTO_TLS1_3 MBEDTLS_SSL_SESSION_TICKETS MBEDTLS_SSL_SRV_C \
@@ -160,7 +160,7 @@
          -S "ticket is not authentic" \
          -S "ticket is expired" \
          -s "Invalid ticket start time" \
-         -S "Ticket age exceed limitation" \
+         -S "Ticket age exceeds limitation" \
          -S "Ticket age outside tolerance window"
 
 requires_all_configs_enabled MBEDTLS_SSL_PROTO_TLS1_3 MBEDTLS_SSL_SESSION_TICKETS MBEDTLS_SSL_SRV_C \
@@ -181,7 +181,7 @@
          -S "ticket is not authentic" \
          -S "ticket is expired" \
          -S "Invalid ticket start time" \
-         -s "Ticket age exceed limitation" \
+         -s "Ticket age exceeds limitation" \
          -S "Ticket age outside tolerance window"
 
 requires_all_configs_enabled MBEDTLS_SSL_PROTO_TLS1_3 MBEDTLS_SSL_SESSION_TICKETS MBEDTLS_SSL_SRV_C \
@@ -202,7 +202,7 @@
          -S "ticket is not authentic" \
          -S "ticket is expired" \
          -S "Invalid ticket start time" \
-         -S "Ticket age exceed limitation" \
+         -S "Ticket age exceeds limitation" \
          -s "Ticket age outside tolerance window"
 
 requires_all_configs_enabled MBEDTLS_SSL_PROTO_TLS1_3 MBEDTLS_SSL_SESSION_TICKETS MBEDTLS_SSL_SRV_C \
@@ -223,7 +223,7 @@
          -S "ticket is not authentic" \
          -S "ticket is expired" \
          -S "Invalid ticket start time" \
-         -S "Ticket age exceed limitation" \
+         -S "Ticket age exceeds limitation" \
          -s "Ticket age outside tolerance window"
 
 requires_gnutls_tls1_3