Document format of suppression files comment lines and blank lines.

Seems this was not documented.

diff --git a/docs/xml/manual-core.xml b/docs/xml/manual-core.xml
index 4480f59280f6780a08d7cc22f8d135657134e3fd..2e90ab7b8cf3de64b8a5b4a936020637877fcf39 100644 (file)
--- a/docs/xml/manual-core.xml
+++ b/docs/xml/manual-core.xml
@@ -419,6 +419,10 @@ existing suppressions file whilst reading the following documentation.
 The file <filename>glibc-2.3.supp</filename>, in the source
 distribution, provides some good examples.</para>
 
+<para>Blank and comment lines in a suppression file are ignored.  Comment lines
+  are made of 0 or more blanks followed by a # character followed by some
+  text.</para>
+
 <para>Each suppression has the following components:</para>
 
 <itemizedlist>