remove blackfriday.EXTENSION_HARD_LINE_BREAK from options.

modules/base/markdown.go

@@ -198,7 +198,7 @@ func RenderRawMarkdown(body []byte, urlPrefix string) []byte {
 	extensions |= blackfriday.EXTENSION_FENCED_CODE
 	extensions |= blackfriday.EXTENSION_AUTOLINK
 	extensions |= blackfriday.EXTENSION_STRIKETHROUGH
-	extensions |= blackfriday.EXTENSION_HARD_LINE_BREAK
+	//extensions |= blackfriday.EXTENSION_HARD_LINE_BREAK
 	extensions |= blackfriday.EXTENSION_SPACE_HEADERS
 	extensions |= blackfriday.EXTENSION_NO_EMPTY_LINE_BEFORE_BLOCK