wpp: allow c++ comments after #endif

["Johannes E. Schindelin" <Johannes.Schindelin@gmx.de>]

This seems to have been just a typo.

diff -u -r1.2 ppl.l
--- tools/wpp/ppl.l	10 Jan 2003 01:49:00 -0000	1.2
+++ tools/wpp/ppl.l	10 Jan 2003 13:00:34 -0000
@@ -531,7 +531,7 @@
 	/*
 	 * Remove C++ style comment (almost all start-conditions)
 	 */
-<INITIAL,pp_pp,pp_ignore,pp_eol,pp_inc,pp_if,pp_ifd,pp_defined,pp_def,pp_define,pp_macro,pp_mbody,pp_macscan,RCINCL>"//"[^\n]*	{
+<INITIAL,pp_pp,pp_ignore,pp_eol,pp_inc,pp_if,pp_ifd,pp_endif,pp_defined,pp_def,pp_define,pp_macro,pp_mbody,pp_macscan,RCINCL>"//"[^\n]*	{
 		if(pptext[ppleng-1] == '\\')
 			ppwarning("C++ style comment ends with an escaped newline (escape ignored)");
 	}