diff -r 4ac04bf9ff89 -r fd650d659275 src/Pure/General/path.scala
--- a/src/Pure/General/path.scala	Thu Jun 30 00:09:57 2011 +0200
+++ b/src/Pure/General/path.scala	Thu Jun 30 11:15:36 2011 +0200
@@ -1,8 +1,8 @@
 /*  Title:      Pure/General/path.scala
     Author:     Makarius
 
-Abstract algebra of file paths: basic POSIX notation, extended by
-named roots (e.g. //foo) and variables (e.g. $BAR).
+Algebra of file-system paths: basic POSIX notation, extended by named
+roots (e.g. //foo) and variables (e.g. $BAR).
 */
 
 package isabelle