Update LOG_WITHOUT_NEWLINE test to expect 4 lines

With the in-memory certificate generation, the startup now prints
an additional line "Generating self-signed certificate in memory..."
before the "Listening on ports..." message. This changes the expected
line count from 3 to 4 for the LOG_WITHOUT_NEWLINE test:

1. Generating self-signed certificate in memory...
2. Listening on ports 8080 for http, and 8443 for https.
3. JSON echo output (single line due to LOG_WITHOUT_NEWLINE)
4. Morgan access log

Co-Authored-By: Willy Guggenheim <willy@gugcorp.com>

Author: willyguggenheim

tests.sh

@@ -416,7 +416,7 @@ docker run -d --rm -e LOG_WITHOUT_NEWLINE=1 --name http-echo-tests -p 8080:8080
 sleep 5
 curl -s -k -X POST -d "tiramisu" https://localhost:8443/ > /dev/null
 
-if [ $(docker logs http-echo-tests | wc -l) == 3 ] && \
+if [ $(docker logs http-echo-tests | wc -l) == 4 ] && \
    [ $(docker logs http-echo-tests | grep tiramisu) ]
 then
     passed "LOG_WITHOUT_NEWLINE logged output in single line"