Fix the scan to reduce false positives.

Also, truncate the lines on output if over 100 characters.

utilities/ISF-transition/obsoleteUris/directory_walker.rb

@@ -34,13 +34,13 @@ class DirectoryWalker
   def scan_line(path, line_number, line)
     @obsolete_uris.uris.each do |uri|
       next if @known_exceptions.skip?(path, line_number, uri)
-      @report.add_event(Event.new(path, line_number, line, uri)) if line =~ Regexp.new(Regexp.quote(uri)) 
+      @report.add_event(Event.new(path, line_number, line, uri)) if line =~ Regexp.new("\\b#{Regexp.quote(uri)}\\b") 
     end
     if @complete
       @obsolete_uris.localnames.each do |localname|
         term = ":#{localname}"
         next if @known_exceptions.skip?(path, line_number, term)
-        @report.add_event(Event.new(path, line_number, line, term)) if line =~ Regexp.new(Regexp.quote(term)) 
+        @report.add_event(Event.new(path, line_number, line, term)) if line =~ Regexp.new("#{Regexp.quote(term)}\\b") 
       end
     end
   end