[PATCH] docs: document handling of metacharacter escape in xl disk format

[Ian Campbell <ian.campbell@citrix.com>]

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Jim Fehlig <jfehlig@suse.com>
---
 docs/misc/xl-disk-configuration.txt | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/docs/misc/xl-disk-configuration.txt b/docs/misc/xl-disk-configuration.txt
index 6a2118d..a03ad10 100644
--- a/docs/misc/xl-disk-configuration.txt
+++ b/docs/misc/xl-disk-configuration.txt
@@ -48,6 +48,24 @@ positionally or explicitly).
 
 Whitespace may appear before each parameter and will be ignored.
 
+Metacharacters in a <diskspec> may be escaped using a backslash:
+
+    Escape      HEX     Description
+    ------      ---     -----------
+    \a          0x07    Bell
+    \b          0x08    Backspace
+    \t          0x09    Horizontal Tab
+    \n          0x0A    New Line / Line Feed
+    \f          0x0C    Form Feed
+    \r          0x0D    Carriage Return
+    \v          0x0B    Vertical Tab
+    \"          0x22    A literal double quote
+    \'          0x27    A literal single quote
+    \\          0x5C    A literal backslash
+    \xXX                Character XX in hexadecimal
+    \OOO                Character OOO in octal
+
+Any other character following a backslash is an error.
 
 =====================
 POSITIONAL PARAMETERS
-- 
2.1.4