Pure/ROOT.ML
cleaned comments;
removed extraneous 'print_depth 1';
replaced Basic_Syntax by BasicSyntax
added 'use "install_pp.ML"';
Pure/README
fixed comments;
Pure/POLY.ML
Pure/NJ.ML
make_pp: added fbrk;
Pure/install_pp.ML
replaced "Ast" by "Syntax";
Pure/sign.ML
added 'quote' to some error msgs;
#! /bin/csh
grep "$*" {Pure/Syntax,Pure/Thy}/*ML */*ML */ex/*ML