Fix threshold checks for MBEDTLS_X509_MAX_INTERMEDIATE_CA
diff --git a/tests/ssl-opt.sh b/tests/ssl-opt.sh
index d7e0b8c..92acd4e 100755
--- a/tests/ssl-opt.sh
+++ b/tests/ssl-opt.sh
@@ -2106,7 +2106,7 @@
# The "max_int chain" tests assume that MAX_INTERMEDIATE_CA is set to its
# default value (8)
-: ${MAX_IM_CA:='20'}
+: ${MAX_IM_CA:='19'}
MAX_IM_CA_CONFIG=$( ../scripts/config.pl get MBEDTLS_X509_MAX_INTERMEDIATE_CA)
if [ -n "$MAX_IM_CA_CONFIG" ] && [ "$MAX_IM_CA_CONFIG" -gt "$MAX_IM_CA" ]; then