doc: improve clarity by adding "without any space"

In Message configuration, a list of comma separated email can be configured.
To work correctly that list has to not contain any space.

Fix bug#1391

Signed-off-by: Bruno Friedmann <bruno.friedmann@bareos.com>

docs/manuals/source/manually_added_config_directive_descriptions/dir-messages-Mail.rst.inc

@@ -1,2 +1,2 @@
-Send the message to the email addresses that are given as a comma separated list in the address field. Mail messages are grouped together during a job and then sent as a single email message when the job terminates. The advantage of this destination is that you are notified about every Job that runs. However, if you backup mutliple machines every night, the number of email messages can be annoying. Some users use filter programs such as :command:`procmail` to automatically file this
+Send the message to the email addresses that are given as a comma separated list (without any space) in the address field. Mail messages are grouped together during a job and then sent as a single email message when the job terminates. The advantage of this destination is that you are notified about every Job that runs. However, if you backup mutliple machines every night, the number of email messages can be annoying. Some users use filter programs such as :command:`procmail` to automatically file this
 email based on the Job termination code (see :config:option:`dir/messages/MailCommand`\ ).

docs/manuals/source/manually_added_config_directive_descriptions/dir-messages-MailOnError.rst.inc

@@ -1,2 +1,2 @@
-Send the message to the email addresses that are given as a comma separated list in the address field if the Job terminates with an error condition. :strong:`Mail On Error`\  messages are grouped together during a job and then sent as a single email message when the job terminates. This destination differs from the mail destination in that if the Job terminates normally, the message is totally discarded (for this destination). If the Job terminates in error, it is emailed. By
+Send the message to the email addresses that are given as a comma separated list (without any space) in the address field if the Job terminates with an error condition. :strong:`Mail On Error`\  messages are grouped together during a job and then sent as a single email message when the job terminates. This destination differs from the mail destination in that if the Job terminates normally, the message is totally discarded (for this destination). If the Job terminates in error, it is emailed. By
 using other destinations such as append you can ensure that even if the Job terminates normally, the output information is saved.

docs/manuals/source/manually_added_config_directive_descriptions/dir-messages-MailOnSuccess.rst.inc

@@ -1,2 +1,2 @@
-Send the message to the email addresses that are given as a comma separated list in the address field if the Job terminates normally (no error condition). :strong:`Mail On Success`\  messages are grouped together during a job and then sent as a single email message when the job terminates. This destination differs from the mail destination in that if the Job terminates abnormally, the message is totally discarded (for this destination). If the Job terminates normally, it is
+Send the message to the email addresses that are given as a comma separated list (without any space) in the address field if the Job terminates normally (no error condition). :strong:`Mail On Success`\  messages are grouped together during a job and then sent as a single email message when the job terminates. This destination differs from the mail destination in that if the Job terminates abnormally, the message is totally discarded (for this destination). If the Job terminates normally, it is
 emailed.

docs/manuals/source/manually_added_config_directive_descriptions/dir-messages-Operator.rst.inc

@@ -1 +1 @@
-Send the message to the email addresses that are specified as a comma separated list in the address field. This is similar to mail above, except that each message is sent as received. Thus there is one email per message. This is most useful for mount messages (see below).
+Send the message to the email addresses that are specified as a comma separated list (without any space) in the address field. This is similar to mail above, except that each message is sent as received. Thus there is one email per message. This is most useful for mount messages (see below).