Make Travis more chatty.

Include the logs in the report after failing.

.travis.yml

@@ -18,6 +18,8 @@ script:
 - tests/scripts/test-ref-configs.pl
 - tests/scripts/curves.pl
 - tests/scripts/key-exchanges.pl
+after_failure:
+- tests/scripts/travis-log.sh
 env:
   global:
     secure: "barHldniAfXyoWOD/vcO+E6/Xm4fmcaUoC9BeKW+LwsHqlDMLvugaJnmLXkSpkbYhVL61Hzf3bo0KPJn88AFc5Rkf8oYHPjH4adMnVXkf3B9ghHCgznqHsAH3choo6tnPxaFgOwOYmLGb382nQxfE5lUdvnM/W/psQjWt66A1+k="

tests/scripts/travis-log.sh

@@ -0,0 +1,27 @@
+#!/bin/sh
+
+# List the server and client logs on failed ssl-opt.sh and compat.sh tests.
+# This script is used to make the logs show up in the Travis test results.
+
+# Some of the logs can be very long: this means usually a couple of megabytes
+# but it can bee much more. For example, the client log of test 273 in ssl-opt.sh
+# is more than 630 Megabytes long.
+
+if [ -d include/mbedtls ]; then :; else
+    echo "$0: must be run from root" >&2
+    exit 1
+fi
+
+FILES="o-srv-*.log o-cli-*.log c-srv-*.log c-cli-*.log o-pxy-*.log"
+
+for PATTERN in $FILES; do
+    for LOG in $( ls tests/$PATTERN 2>/dev/null ); do
+        echo
+        echo "****** BEGIN file: $LOG ******"
+        echo
+        cat $LOG
+        echo "****** END file: $LOG ******"
+        echo
+        rm $LOG
+    done
+done