* added target Darwin to help page

compiler/msg/errore.msg

@@ -1730,7 +1730,7 @@ execinfo_x_stackcommit=09034_X_Stack space commited: $1 bytes
 # BeginOfTeX
 % \section{Unit loading messages.}
 % This section lists all messages that can occur when the compiler is
-% loading a unit from disk into memory. Many of these mesages are
+% loading a unit from disk into memory. Many of these messages are
 % informational messages.
 % \begin{description}
 unit_t_unitsearch=10000_T_Unitsearch: $1
@@ -2233,6 +2233,7 @@ option_help_pages=11025_[
 6*2Tmacos_Macintosh m68k
 6*2Tpalmos_PalmOS
 P*1T<x>_Target operating system:
+P*2Tdarwin_Darwin and MacOS X on PowerPC
 P*2Tlinux_Linux on PowerPC
 P*2Tmacos_MacOS (classic) on PowerPC
 **1*_

compiler/msgidx.inc

@@ -633,7 +633,7 @@ const
   option_info=11024;
   option_help_pages=11025;
 
-  MsgTxtSize = 35925;
+  MsgTxtSize = 35966;
 
   MsgIdxMax : array[1..20] of longint=(
     17,63,197,53,57,44,99,20,35,60,

compiler/msgtxt.inc

@@ -868,6 +868,7 @@ const msgtxt : array[0..000149,1..240] of char=(
   '6*2Tmacos_Macintosh m68k'#010+
   '6*2Tpalmos_Pal','mOS'#010+
   'P*1T<x>_Target operating system:'#010+
+  'P*2Tdarwin_Darwin and MacOS X on PowerPC'#010+
   'P*2Tlinux_Linux on PowerPC'#010+
   'P*2Tmacos_MacOS (classic) on PowerPC'#010+
   '**1*_'#010+