cscope db cannot be created on macbook

[renzhengeek]

Hi,

I love this great plugin! But it doesn't work well after I use it on macbook. The problem is: every time after I pressed F4, any cscope command, e.g. cs show, results in cscope no connection error.

After some debugging, it turns out that the issue is with the find command. The change below fixes it for me:

diff --git a/plugin/autotags.vim b/plugin/autotags.vim
index 0f59354..ba03ba6 100644
--- a/plugin/autotags.vim
+++ b/plugin/autotags.vim
@@ -195,7 +195,7 @@ fun! s:AutotagsInit()
     endif

     let s:cscope_file_pattern = '.*\' .
-        \ join(split(g:autotags_cscope_file_extensions, " "), '\|.*\')
+        \ join(split(g:autotags_cscope_file_extensions, " "), '|.*\')

     if !exists("g:autotags_export_cscope_dir")
         let g:autotags_export_cscope_dir = 0
@@ -345,7 +345,7 @@ fun! s:AutotagsGenerateC(sourcedir, tagsdir)
     echomsg "updating cscopedb in " . shellescape(l:cscopedir) ." for " .
         \ shellescape(a:sourcedir)
     echomsg system("cd " . shellescape(l:cscopedir) . " && " .
-        \ " nice -15 find " . shellescape(a:sourcedir) .
+        \ " nice -15 find -E " . shellescape(a:sourcedir) .
         \ " -not -regex '.*\\.git.*' " .
         \ " -regex '" . s:cscope_file_pattern . "' " .
         \ " -print > cscope.files")

[renzhengeek]

I can make a PR if you think it's a right fix for a real problem :)