Fix vimrc when sensible has already been loaded

.vimrc

@@ -1,92 +1,91 @@
 " Sensible.vim
 
 if exists('g:loaded_sensible') || &compatible
-  finish
 else
   let g:loaded_sensible = 1
-endif
 
-if has('autocmd')
-  filetype plugin indent on
-endif
-if has('syntax') && !exists('g:syntax_on')
-  syntax enable
-endif
+  if has('autocmd')
+    filetype plugin indent on
+  endif
+  if has('syntax') && !exists('g:syntax_on')
+    syntax enable
+  endif
 
-" Use :help 'option' to see the documentation for the given option.
+  " Use :help 'option' to see the documentation for the given option.
 
-set autoindent
-set backspace=indent,eol,start
-set complete-=i
-set smarttab
+  set autoindent
+  set backspace=indent,eol,start
+  set complete-=i
+  set smarttab
 
-set nrformats-=octal
+  set nrformats-=octal
 
-set ttimeout
-set ttimeoutlen=100
+  set ttimeout
+  set ttimeoutlen=100
 
-set incsearch
-" Use <C-L> to clear the highlighting of :set hlsearch.
-if maparg('<C-L>', 'n') ==# ''
-  nnoremap <silent> <C-L> :nohlsearch<C-R>=has('diff')?'<Bar>diffupdate':''<CR><CR><C-L>
-endif
+  set incsearch
+  " Use <C-L> to clear the highlighting of :set hlsearch.
+  if maparg('<C-L>', 'n') ==# ''
+    nnoremap <silent> <C-L> :nohlsearch<C-R>=has('diff')?'<Bar>diffupdate':''<CR><CR><C-L>
+  endif
 
-set laststatus=2
-set ruler
-set wildmenu
+  set laststatus=2
+  set ruler
+  set wildmenu
 
-if !&scrolloff
-  set scrolloff=1
-endif
-if !&sidescrolloff
-  set sidescrolloff=5
-endif
-set display+=lastline
+  if !&scrolloff
+    set scrolloff=1
+  endif
+  if !&sidescrolloff
+    set sidescrolloff=5
+  endif
+  set display+=lastline
 
-if &encoding ==# 'latin1' && has('gui_running')
-  set encoding=utf-8
-endif
+  if &encoding ==# 'latin1' && has('gui_running')
+    set encoding=utf-8
+  endif
 
-if &listchars ==# 'eol:$'
-  set listchars=tab:>\ ,trail:-,extends:>,precedes:<,nbsp:+
-endif
+  if &listchars ==# 'eol:$'
+    set listchars=tab:>\ ,trail:-,extends:>,precedes:<,nbsp:+
+  endif
 
-if v:version > 703 || v:version == 703 && has("patch541")
-  set formatoptions+=j " Delete comment character when joining commented lines
-endif
+  if v:version > 703 || v:version == 703 && has("patch541")
+    set formatoptions+=j " Delete comment character when joining commented lines
+  endif
 
-if has('path_extra')
-  setglobal tags-=./tags tags-=./tags; tags^=./tags;
-endif
+  if has('path_extra')
+    setglobal tags-=./tags tags-=./tags; tags^=./tags;
+  endif
 
-if &shell =~# 'fish$' && (v:version < 704 || v:version == 704 && !has('patch276'))
-  set shell=/bin/bash
-endif
+  if &shell =~# 'fish$' && (v:version < 704 || v:version == 704 && !has('patch276'))
+    set shell=/bin/bash
+  endif
 
-set autoread
+  set autoread
 
-if &history < 1000
-  set history=1000
-endif
-if &tabpagemax < 50
-  set tabpagemax=50
-endif
-if !empty(&viminfo)
-  set viminfo^=!
-endif
-set sessionoptions-=options
+  if &history < 1000
+    set history=1000
+  endif
+  if &tabpagemax < 50
+    set tabpagemax=50
+  endif
+  if !empty(&viminfo)
+    set viminfo^=!
+  endif
+  set sessionoptions-=options
 
-" Allow color schemes to do bright colors without forcing bold.
-if &t_Co == 8 && $TERM !~# '^linux\|^Eterm'
-  set t_Co=16
-endif
+  " Allow color schemes to do bright colors without forcing bold.
+  if &t_Co == 8 && $TERM !~# '^linux\|^Eterm'
+    set t_Co=16
+  endif
 
-" Load matchit.vim, but only if the user hasn't installed a newer version.
-if !exists('g:loaded_matchit') && findfile('plugin/matchit.vim', &rtp) ==# ''
-  runtime! macros/matchit.vim
-endif
+  " Load matchit.vim, but only if the user hasn't installed a newer version.
+  if !exists('g:loaded_matchit') && findfile('plugin/matchit.vim', &rtp) ==# ''
+    runtime! macros/matchit.vim
+  endif
 
-inoremap <C-U> <C-G>u<C-U>
+  inoremap <C-U> <C-G>u<C-U>
+endif
 
 " change terminal title
 set title