Add Rockbox layout to plugin API documentation


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18754 a1c6a512-1295-4272-9138-f99709370657
diff --git a/docs/PLUGIN_API.new b/docs/PLUGIN_API.new
index 3388fa9..02e9c8c 100644
--- a/docs/PLUGIN_API.new
+++ b/docs/PLUGIN_API.new
@@ -2221,8 +2221,8 @@
     \param buf
     \param size
     \param fmt
-    \return the number of characters printed or that would have been printed if the output was truncated (not including the trailing '\0') upon success
-    \description Write a formatted string =fmt= in buffer =buf= of size =size= (including the trailing '\0'). These support %c, %s, %d and %x only with the width and zero padding flag only.
+    \return the number of characters printed or that would have been printed if the output was truncated (not including the trailing NULL character) upon success
+    \description Write a formatted string =fmt= in buffer =buf= of size =size= (including the trailing NULL character). These support %c, %s, %d and %x only with the width and zero padding flag only.
 
 int sound_default(int setting)
     \group sound