Remove debugging code...

ftdetect/polyglot.vim

@@ -1775,7 +1775,7 @@ endif
 " end filetypes
 
 au BufNewFile,BufRead,StdinReadPost * 
-  \ if !did_filetype() && expand("<amatch>") !~ g:ft_ignore_pat 
+  \ if !did_filetype() && expand("<afile>") !~ g:ft_ignore_pat 
   \ | call polyglot#Heuristics() | endif
 
 
@@ -1799,8 +1799,11 @@ if !has_key(s:disabled_packages, 'autoindent')
     let heredoc = ''
     let minindent = 10
     let spaces_minus_tabs = 0
+    let i = 0
 
     for line in a:lines
+      let i += 1
+
       if !len(line) || line =~# '^\W*$'
         continue
       endif
@@ -1869,12 +1872,13 @@ if !has_key(s:disabled_packages, 'autoindent')
 
       if line[0] == "\t"
         setlocal noexpandtab
+        let &shiftwidth=&tabstop
+        let b:sleuth_culprit .= ':' . i
         return 1
       elseif line[0] == " "
         let indent = len(matchstr(line, '^ *'))
         if (indent % 2 == 0 || indent % 3 == 0) && indent < minindent
           let minindent = indent
-          let b:sleuth_culprit .= ":" . line
         endif
       endif
     endfor
@@ -1882,10 +1886,10 @@ if !has_key(s:disabled_packages, 'autoindent')
     if minindent < 10
       setlocal expandtab
       let &shiftwidth=minindent
+      let b:sleuth_culprit .= ':' . i
       return 1
     endif
 
-    unlet b:sleuth_culprit
     return 0
   endfunction
 
@@ -1894,7 +1898,7 @@ if !has_key(s:disabled_packages, 'autoindent')
       return
     endif
 
-    let b:sleuth_culprit = expand("<amatch>")
+    let b:sleuth_culprit = expand("<afile>:p")
     if s:guess(getline(1, 32))
       return
     endif
@@ -1908,13 +1912,15 @@ if !has_key(s:disabled_packages, 'autoindent')
     while isdirectory(dir) && dir !=# fnamemodify(dir, ':h') && level > 0
       " Ignore files from homedir and root 
       if dir == expand('~') || dir == '/'
+        unlet b:sleuth_culprit
         return
       endif
       for neighbor in glob(dir . '/' . pattern, 0, 1)[0:level]
         let b:sleuth_culprit = neighbor
         " Do not consider directories above .git, .svn or .hg
         if fnamemodify(neighbor, ":h:t")[0] == "."
-          return
+          let level = 0
+          continue
         endif
         if neighbor !=# expand('%:p') && filereadable(neighbor)
           if s:guess(readfile(neighbor, '', 32))
@@ -1926,6 +1932,8 @@ if !has_key(s:disabled_packages, 'autoindent')
       let dir = fnamemodify(dir, ':h')
       let level -= 1
     endwhile
+
+    unlet b:sleuth_culprit
   endfunction
 
   setglobal smarttab