Fix typos.

(cherry picked from commit e44906ca4f)

doc/en/index.docbook

@@ -860,7 +860,7 @@ This opens a terminal window in the directory of the selected item.
 Use this to issue a few shell commands in that directory, then simply close
 that shell window. You can easily open a new one in a different directory if
 you need one, so you might want not to bother to repeatedly type
-<userinput>cd</userinput> with lenghty paths - simply close that shell and open
+<userinput>cd</userinput> with lengthy paths - simply close that shell and open
 a new one at the new location (type <keycap>Ctrl</keycap>-<keysym>T</keysym>.
 </para>
 <para>

kdirstat/kpacman.cpp

@@ -147,13 +147,13 @@ KPacManAnimation::animate( TQPainter *	painter,
     {
 	p.drawPie( _pacManRect,
 		   _mouth * 16,				// arc (1/16 degrees)
-		   ( 360 - 2 * _mouth ) * 16 );		// arc lenght (1/16 degrees)
+		   ( 360 - 2 * _mouth ) * 16 );		// arc length (1/16 degrees)
     }
     else
     {
 	p.drawPie( _pacManRect,
 		   ( 180 + _mouth ) * 16,		// arc (1/16 degrees)
-		   ( 360 - 2 * _mouth ) * 16 );		// arc lenght (1/16 degrees)
+		   ( 360 - 2 * _mouth ) * 16 );		// arc length (1/16 degrees)
     }
 
     _pacManRect = TQRect( rect.x() + _pos,		// x