Simplify the 'blind' macro and imrove spacing where it's used

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27166 a1c6a512-1295-4272-9138-f99709370657

manual/preamble.tex

@@ -197,10 +197,8 @@
 % command to mark a text block as intended especially for blind people
 % Usage: \blind{text}
 \ifpdfoutput{
-\newcommand{\blind}[1]{
-  \ifinner\else\par\noindent\fi
-  \ifinner#1\else\marginpar{\raisebox{-6pt}{\Huge\ForwardToEnd}}#1\par\fi%
-}}
+\newcommand{\blind}[1]{\mbox{}\marginpar{\raisebox{-1ex}{\Huge{\ForwardToEnd}}}#1}
+}
 {\newcommand{\blind}[1]{\ifinner\else\par\noindent\fi#1}}
 
 % make table floats use "H" (as for screenshots) as default positioning

manual/rockbox_interface/main.tex

@@ -39,8 +39,7 @@ The areas of the touchscreen in the 3$\times$3 grid mode are in turn referred as
 Whenever a button name is prefixed by ``Long'', a long press of approximately
 one second should be performed on that button. The buttons are described in
 detail in the following paragraph.
-
-\blind{
+\blind{%
   Additional information for blind users is available on the Rockbox website at 
   \wikilink{BlindFAQ}.