fix(apache-2.4.config.jinja): fix `salt-lint` errors

```bash
Examining apache/files/FreeBSD/apache-2.4.config.jinja of type state
[201] Trailing whitespace
apache/files/FreeBSD/apache-2.4.config.jinja:171
```

apache/files/FreeBSD/apache-2.4.config.jinja

 # This is the main Apache HTTP server configuration file.  It contains the
 # configuration directives that give the server its instructions.
 # See <URL:http://httpd.apache.org/docs/2.4/> for detailed information.
-# In particular, see 
+# In particular, see
 # <URL:http://httpd.apache.org/docs/2.4/mod/directives.html>
 # for a discussion of each configuration directive.
 #
 # Do NOT simply read the instructions in here without understanding
 # what they do.  They're here only as hints or reminders.  If you are unsure
-# consult the online docs. You have been warned.  
+# consult the online docs. You have been warned.
 #
 # Configuration and logfile names: If the filenames you specify for many
 # of the server's control files begin with "/" (or "drive:/" for Win32), the
 # server will use that explicit path.  If the filenames do *not* begin
 # with "/", the value of ServerRoot is prepended -- so "logs/access_log"
 # with ServerRoot set to "/usr/local/apache2" will be interpreted by the
-# server as "/usr/local/apache2/logs/access_log", whereas "/logs/access_log" 
+# server as "/usr/local/apache2/logs/access_log", whereas "/logs/access_log"
 # will be interpreted as '/logs/access_log'.
 
 #
 
 # Third party modules
 IncludeOptional etc/apache24/modules.d/[0-9][0-9][0-9]_*.conf
- 
+
 Include {{ apache.portsfile }}
 
 <IfModule unixd_module>
 #
 # If you wish httpd to run as a different user or group, you must run
-# httpd as root initially and it will switch.  
+# httpd as root initially and it will switch.
 #
 # User/Group: The name (or #number) of the user/group to run httpd as.
 # It is usually good practice to create a dedicated user and group for
 
 #
 # Deny access to the entirety of your server's filesystem. You must
-# explicitly permit access to web content directories in other 
+# explicitly permit access to web content directories in other
 # <Directory> blocks below.
 #
 <Directory />
 </IfModule>
 
 #
-# The following lines prevent .htaccess and .htpasswd files from being 
-# viewed by Web clients. 
+# The following lines prevent .htaccess and .htpasswd files from being
+# viewed by Web clients.
 #
 <Files ".ht*">
     Require all denied
 
 <IfModule alias_module>
     #
-    # Redirect: Allows you to tell clients about documents that used to 
-    # exist in your server's namespace, but do not anymore. The client 
+    # Redirect: Allows you to tell clients about documents that used to
+    # exist in your server's namespace, but do not anymore. The client
     # will make a new request for the document at its new location.
     # Example:
     # Redirect permanent /foo http://www.example.com/bar
     # the filesystem path.
 
     #
-    # ScriptAlias: This controls which directories contain server scripts. 
+    # ScriptAlias: This controls which directories contain server scripts.
     # ScriptAliases are essentially the same as Aliases, except that
     # documents in the target directory are treated as applications and
     # run by the server when requested rather than as documents sent to the
 #MaxRanges unlimited
 
 #
-# EnableMMAP and EnableSendfile: On systems that support it, 
+# EnableMMAP and EnableSendfile: On systems that support it,
 # memory-mapping or the sendfile syscall may be used to deliver
 # files.  This usually improves server performance, but must
-# be turned off when serving from networked-mounted 
+# be turned off when serving from networked-mounted
 # filesystems or if support for these functions is otherwise
 # broken on your system.
 # Defaults: EnableMMAP On, EnableSendfile Off
 
 # Supplemental configuration
 #
-# The configuration files in the etc/apache24/extra/ directory can be 
-# included to add extra features or to modify the default configuration of 
-# the server, or you may simply copy their contents here and change as 
+# The configuration files in the etc/apache24/extra/ directory can be
+# included to add extra features or to modify the default configuration of
+# the server, or you may simply copy their contents here and change as
 # necessary.
 
 # Server-pool management (MPM specific)