diff --git a/runtime/ftplugin/perl.vim b/runtime/ftplugin/perl.vim
index 415010c..741cfae 100644
--- a/runtime/ftplugin/perl.vim
+++ b/runtime/ftplugin/perl.vim
@@ -3,7 +3,7 @@
 " Maintainer:    vim-perl <vim-perl@googlegroups.com>
 " Homepage:      http://github.com/vim-perl/vim-perl
 " Bugs/requests: http://github.com/vim-perl/vim-perl/issues
-" Last Change:   2013 Jul 24
+" Last Change:   2013-07-21
 
 if exists("b:did_ftplugin") | finish | endif
 let b:did_ftplugin = 1
diff --git a/runtime/ftplugin/perl6.vim b/runtime/ftplugin/perl6.vim
index 1974b33..5318df6 100644
--- a/runtime/ftplugin/perl6.vim
+++ b/runtime/ftplugin/perl6.vim
@@ -3,7 +3,7 @@
 " Maintainer:    vim-perl <vim-perl@googlegroups.com>
 " Homepage:      http://github.com/vim-perl/vim-perl
 " Bugs/requests: http://github.com/vim-perl/vim-perl/issues
-" Last Change:   2013 Jul 24
+" Last Change:   2013-07-21
 " Contributors:  Hinrik Örn Sigurðsson <hinrik.sig@gmail.com>
 "
 " Based on ftplugin/perl.vim by Dan Sharp <dwsharp at hotmail dot com>
diff --git a/runtime/ftplugin/tt2html.vim b/runtime/ftplugin/tt2html.vim
index abb1ed8..10520d8 100644
--- a/runtime/ftplugin/tt2html.vim
+++ b/runtime/ftplugin/tt2html.vim
@@ -2,7 +2,7 @@
 " Maintainer:    vim-perl <vim-perl@googlegroups.com>
 " Homepage:      http://github.com/vim-perl/vim-perl
 " Bugs/requests: http://github.com/vim-perl/vim-perl/issues
-" Last Change:   2013 Jul 24
+" Last Change:   2013-07-21
 
 " Only do this when not done yet for this buffer
 if exists("b:did_ftplugin")
diff --git a/runtime/ftplugin/xs.vim b/runtime/ftplugin/xs.vim
index 5ac2353..a28da6a 100644
--- a/runtime/ftplugin/xs.vim
+++ b/runtime/ftplugin/xs.vim
@@ -3,7 +3,7 @@
 " Maintainer:    vim-perl <vim-perl@googlegroups.com>
 " Homepage:      http://github.com/vim-perl/vim-perl
 " Bugs/requests: http://github.com/vim-perl/vim-perl/issues
-" Last Change:   2013 Jul 24
+" Last Change:   2013-07-21
 
 " Only do this when not done yet for this buffer
 if exists("b:did_ftplugin")