.vimrc: Tabs, not spaces

.vimrc

@@ -19,7 +19,7 @@ set noeol
 set backupdir=~/.vim/backups
 set directory=~/.vim/swaps
 if exists("&undodir")
-  set undodir=~/.vim/undo
+	set undodir=~/.vim/undo
 endif
 
 " Enable line numbers
@@ -56,9 +56,9 @@ set showmode
 " Show the filename in the window titlebar
 set title
 if exists("&relativenumber")
-  " Use relative line numbers
-  set relativenumber
-  au BufReadPost * set relativenumber
+	" Use relative line numbers
+	set relativenumber
+	au BufReadPost * set relativenumber
 endif
 " Start scrolling three lines before the horizontal window border
 set scrolloff=3