Only add .rb to 'suffixesadd'

Author: tpope

autoload/rails.vim

@@ -4460,7 +4460,7 @@ function! s:BufSettings()
     let &l:tags = rp . '/tmp/tags,' . &tags . ',' . rp . '/tags'
   endif
   call self.setvar('&includeexpr','RailsIncludeexpr()')
-  call self.setvar('&suffixesadd', ".rb,.".join(s:view_types,',.'))
+  call self.setvar('&suffixesadd', s:sub(self.getvar('&suffixesadd'),'^$','.rb'))
   let ft = self.getvar('&filetype')
   if ft =~# '^\%(e\=ruby\|[yh]aml\|coffee\|css\|s[ac]ss\|lesscss\)\>'
     call self.setvar('&shiftwidth',2)

doc/rails.txt

@@ -820,11 +820,6 @@ that this is a user preference has been ignored.
 					*rails-'path'*		*rails-'pa'*
 All the relevant directories from your application are added to your 'path'.
 This makes it easy to access a buried file: >
-	:find blog_controller.rb
-<
-					*rails-'suffixesadd'*	*rails-'sua'*
-This is filetype dependent, but typically includes .rb, .rake, and several
-others.  This allows shortening the above example: >
 	:find blog_controller
 <
 					*rails-'includeexpr'*	*rails-'inex'*