Fix: Some typos found using codespell

os/debian/changelog

@@ -1033,7 +1033,7 @@ openttd (0.4.0-1) unstable; urgency=low
 openttd (0.3.6-1) unstable; urgency=low
 
   * New upstream release
-  * Modifed Makefile to install xpm icon and scenarios in /usr/share/games/openttd/
+  * Modified Makefile to install xpm icon and scenarios in /usr/share/games/openttd/
   * Added openttd.32.xpm, openttd.64.xpm was too big
 
  -- Matthijs Kooijman <m.kooijman@student.utwente.nl>  Tue, 25 Jan 2005 19:21:08 +0100

os/rpm/openttd.changes

@@ -46,7 +46,7 @@ Sat May  1 15:59:32 UTC 2010 - Marcel Gmür <ammler@openttdcoop.org>
 Thu Apr  1 08:53:54 UTC 2010 - Marcel Gmür <ammler@openttdcoop.org>
 
 - upstream update 1.0.0 (finally!)
-  * completely independend game but still working also
+  * completely independent game but still working also
     with ttd original gaphics, sounds and music
 - Add: Recommends openmsx
 - requires lzo2
@@ -54,7 +54,7 @@ Thu Apr  1 08:53:54 UTC 2010 - Marcel Gmür <ammler@openttdcoop.org>
 -------------------------------------------------------------------
 Fri Dec 18 2009 Marcel Gmür <ammler@openttdcoop.org> - 0.7.4
 
-- support for differen branches
+- support for different branches
 - easy support for dedicated branch
 - let openttd build system make the dektop file
 - split the package to data and gui

os/rpm/openttd.spec

@@ -61,7 +61,7 @@ BuildRequires:  kernel
 BuildRequires:  pkg-config
 %endif
 
-# bulding openttd.grf is not required as it is a) part of source and
+# building openttd.grf is not required as it is a) part of source and
 # b) required only, if you want to use the original set
 %if 0%{?with_grfcodec}
 BuildRequires:  grfcodec

os/windows/installer/install.nsi

@@ -143,7 +143,7 @@ Section "!OpenTTD" Section1
 	Push "$INSTDIR\scripts\README.md"
 	Call unix2dos
 
-	; Copy some documention files
+	; Copy some documentation files
 	SetOutPath "$INSTDIR\docs\"
 	File ${PATH_ROOT}docs\multiplayer.txt
 	Push "$INSTDIR\docs\multiplayer.txt"