don't escape any html in patch view

rhodecode/templates/changeset/patch_changeset.html

@@ -1,17 +1,17 b''
 %if h.is_hg(c.rhodecode_repo):
 # ${c.rhodecode_repo.alias.upper()} changeset patch
 # User ${c.changeset.author|n}
 # Date ${c.changeset.date}
 # Node ID ${c.changeset.raw_id}
 ${c.parent_tmpl}
-${c.changeset.message}
+${c.changeset.message |n}
 
 %elif h.is_git(c.rhodecode_repo):
 From 35d9475598be9f807cd800e51212b8f1efbeacd9 Mon Sep 17 00:00:00 2001
 From: ${c.changeset.author}
 Date: ${c.changeset.date}
 Subject: [PATCH] ${c.changeset.message}
 ---
 
 %endif
 ${c.diff|n}