prep for sed scripts
diff --git a/plugins/org.eclipse.wtp.releng.utilities/sedscript.sed b/plugins/org.eclipse.wtp.releng.utilities/sedscript.sed
index 75002c7..5db15b5 100644
--- a/plugins/org.eclipse.wtp.releng.utilities/sedscript.sed
+++ b/plugins/org.eclipse.wtp.releng.utilities/sedscript.sed
@@ -1,3 +1,17 @@
+
+# This script finds patterns of the old form of specifying modules, that
+# consist of a path name ending with a module name. We know the model name
+# should stay the same, so this is just to tweak the path names.
+# Thought to be usefull for map files and Team Project Sets.
+
+# Example use:
+# The easiest case, if only a few files
+# sed -f sedscript.sed oldfile.pfs > newfile.pfs
+# This case worked as excpeted on Linux, but not on windows using Cygwin
+# sed -ibak -f sedscript.sed *.pfs
+$ A classic form:
+# find releng/maps/ -name *.map -exec sed -ibak -f sedscript.sed '{}' \;
+
s:jst/components/assembly/features/org.eclipse.jst.feature:webtools.releng/assembly/features/org.eclipse.jst.feature:g
s:jst/components/assembly/features/org.eclipse.jst.sdk:webtools.releng/assembly/features/org.eclipse.jst.sdk:g
s:jst/components/assembly/features/org.eclipse.jst.tests:webtools.releng/assembly/features/org.eclipse.jst.tests:g