service nginx configtest always returns zero exit code

[dandv.livejournal.com]

This issue affects ​many users who mistakenly assume that configtest returns a useful error code.

# nginx -t && echo $?
nginx: [emerg] invalid parameter "server_name" in /etc/nginx/sites-enabled/piwik:5
nginx: configuration file /etc/nginx/nginx.conf test failed
# service nginx configtest && echo $?
 * Testing nginx configuration                              [fail]
0
# /etc/init.d/nginx configtest && echo $?
 * Testing nginx configuration                              [fail]
0

The version is 1.8.0 but I can't select that in the dropdown here on trac.

[Maxim Dounin]

The "nginx -t" command returns useful error code, and init scripts as shipped in ​official packages do the same. The problem you are seeing is probably in the init script you are using, not in nginx.