fs-util: let's avoid unnecessary strerror()

[thirdparty/systemd.git] / man / systemd.syntax.xml

diff --git a/man/systemd.syntax.xml b/man/systemd.syntax.xml
index 3c67e92dd58a1a76b9b89cd685672272f9c5e16c..3b58e4528036fcdabd8a8598f4e2d1174b4033eb 100644 (file)
--- a/man/systemd.syntax.xml
+++ b/man/systemd.syntax.xml
@@ -1,10 +1,9 @@
 <?xml version='1.0'?>
-<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
 <!ENTITY % entities SYSTEM "custom-entities.ent" >
 %entities;
 ]>
-
 <!-- SPDX-License-Identifier: LGPL-2.1+ -->
 
 <refentry id="systemd.syntax">
@@ -66,14 +65,15 @@
 
     <para>Each file is a plain text file divided into sections, with configuration entries in the
     style <replaceable>key</replaceable>=<replaceable>value</replaceable>.
-    Empty lines and lines starting with <literal>#</literal> or <literal>;</literal> are
+    Whitespace immediately before or after the <literal>=</literal> is ignored. Empty lines and lines starting with <literal>#</literal> or <literal>;</literal> are
     ignored, which may be used for commenting.</para>
 
     <para>Lines ending in a backslash are concatenated with the following line while reading and the
     backslash is replaced by a space character. This may be used to wrap long lines. The limit on
     line length is very large (currently 1 MB), but it is recommended to avoid such long lines and
     use multiple directives, variable substitution, or other mechanism as appropriate for the given
-    file type.</para>
+    file type. When a comment line or lines follow a line ending with a backslash, the comment block
+    is ignored, so the continued line is concatenated with whatever follows the comment block.</para>
 
     <example><programlisting>[Section A]
 KeyOne=value 1
@@ -85,6 +85,12 @@ KeyTwo=value 2
 Setting="something" "some thing" "…"
 KeyTwo=value 2 \
        value 2 continued
+
+[Section C]
+KeyThree=value 2\
+# this line is ignored
+; this line is ignored too
+       value 2 continued
 </programlisting></example>
 
     <para>Boolean arguments used in configuration files can be written in