Index: lib/redmine/scm/adapters/subversion_adapter.rb
===================================================================
--- lib/redmine/scm/adapters/subversion_adapter.rb	(revision 1341)
+++ lib/redmine/scm/adapters/subversion_adapter.rb	(working copy)
@@ -133,8 +133,8 @@
           path ||= ''
           identifier_from = (identifier_from and identifier_from.to_i > 0) ? identifier_from.to_i : ''
           identifier_to = (identifier_to and identifier_to.to_i > 0) ? identifier_to.to_i : (identifier_from.to_i - 1)
-          
-          cmd = "#{SVN_BIN} diff -r "
+          # 
+          cmd = "#{SVN_BIN} --diff-cmd diff \"-x -bBEwdu\" diff -r"
           cmd << "#{identifier_to}:"
           cmd << "#{identifier_from}"
           cmd << " #{target(path)}@#{identifier_from}"