Use consistent wording for line-in and -out.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25258 a1c6a512-1295-4272-9138-f99709370657

manual/configure_rockbox/sound_settings.tex

@@ -27,7 +27,7 @@ change to customise your listening experience.
   -74 dB to a maximum of +6 db.}%
   \opt{gigabeats}{minimum of -90 dB to a maximum of +6 dB.}%
   \opt{gigabeatf}{minimum of -74 dB to a maximum of +6 dB.}%
-  \opt{ipodvideo}{\\Remark: Lowering the volume below -57 dB will also affect the lineout 
+  \opt{ipodvideo}{\\Remark: Lowering the volume below -57 dB will also affect the line-out 
   and the recording gain.}
   
 \section{Bass}

manual/configure_rockbox/system_options.tex

@@ -119,7 +119,7 @@ This sub menu relates to limits in the Rockbox operating system.
 
 % TODO: this needs to be rewritten in another style, it lets you mix sound from another source into the music
 \opt{player}{
-  \subsection{Line In} This option activates the line in port on \dap, which is
+  \subsection{Line In} This option activates the line-in port on \dap, which is
     off by default. This is useful for such applications as:
     \begin{itemize}
     \item Game boy $\rightarrow$ \dap $\rightarrow$ human
@@ -162,9 +162,9 @@ this option \setting{On}. If it is not required, then turning this setting
 }
 
 \opt{lineout_poweroff}{
-\subsection{Lineout}
-This option turns the \dap{}'s lineout \setting{On} and \setting{Off}. On some 
-devices an enabled lineout will consume some power even if not used. If it is 
+\subsection{Line Out}
+This option turns the \dap{}'s line-out \setting{On} and \setting{Off}. On some 
+devices an enabled line-out will consume some power even if not used. If it is 
 not required, then turning this setting \setting{Off} will save battery and 
 therefore result in better runtime.
 }