feat(github): update github plugin

bundle/github.vim/autoload/github/api/users.vim

@@ -4,56 +4,60 @@
 "
 " Github API : GET /users
 function! github#api#users#GetAllUsers() abort
-    return github#api#util#Get('users', [])
+  return github#api#util#Get('users', [])
 endfunction
 
 
 function! github#api#users#starred(user,page) abort
-    return json_decode(join(systemlist('curl -s https://api.github.com/users/' .
-                \a:user . '/starred' . '?page=' . a:page ),"\n"))
+  return json_decode(join(systemlist('curl -s https://api.github.com/users/' .
+        \a:user . '/starred' . '?page=' . a:page ),"\n"))
 endfunction
 
 function! github#api#users#starred_pages(user) abort
-    let l:i = systemlist('curl -si https://api.github.com/users/' . a:user . '/starred | grep -E "^Link"')[0]
-    return split(matchstr(l:i,'=\d\+',0,2),'=')[0]
+  let result = system('curl -si https://api.github.com/users/' . a:user . '/starred')
+  if !v:shell_error
+    let i = filter(split(result, "\n"), 'v:val =~# "^Link"')[0]
+    return split(matchstr(i,'=\d\+',0,2),'=')[0]
+  endif
+  return 0
 endfunction
 
 function! github#api#users#GetStarred(user) abort
-    let rel = []
-    let pages = github#api#users#starred_pages(a:user)
-    for page in range(1,pages)
-        let repos = github#api#users#starred(a:user, page)
-        for repo in repos
-            call add(rel, repo)
-        endfor
+  let rel = []
+  let pages = github#api#users#starred_pages(a:user)
+  for page in range(1,pages)
+    let repos = github#api#users#starred(a:user, page)
+    for repo in repos
+      call add(rel, repo)
     endfor
-    return rel
+  endfor
+  return rel
 endfunction
 
 " get a single user
 " GET /users/:username
 function! github#api#users#GetUser(username) abort
-   return github#api#util#Get('users/' . a:username, [])
+  return github#api#util#Get('users/' . a:username, [])
 endfunction
 
 "List followers of a user
 "GET /users/:username/followers
 function! github#api#users#ListFollowers(username) abort
-   let followers = []
-   for i in range(1,github#api#util#GetLastPage('users/' . a:username . '/followers'))
-       call extend(followers,github#api#util#Get('users/' . a:username . '/followers?page=' . i, []))
-   endfor
-   return followers
+  let followers = []
+  for i in range(1,github#api#util#GetLastPage('users/' . a:username . '/followers'))
+    call extend(followers,github#api#util#Get('users/' . a:username . '/followers?page=' . i, []))
+  endfor
+  return followers
 endfunction
 
 "List users followed by another user
 "GET /users/:username/following
 function! github#api#users#ListFollowing(username) abort
-   let following = []
-   for i in range(1,github#api#util#GetLastPage('users/' . a:username . '/following'))
-       call extend(following,github#api#util#Get('users/' . a:username . '/following?page=' . i, []))
-   endfor
-   return following
+  let following = []
+  for i in range(1,github#api#util#GetLastPage('users/' . a:username . '/following'))
+    call extend(following,github#api#util#Get('users/' . a:username . '/following?page=' . i, []))
+  endfor
+  return following
 endfunction
 
 ""
@@ -62,7 +66,7 @@ endfunction
 "
 " Github API : /users/:username/orgs
 function! github#api#users#ListAllOrgs(user) abort
-    return github#api#util#Get(join(['users', a:user, 'orgs'], '/'))
+  return github#api#util#Get(join(['users', a:user, 'orgs'], '/'))
 endfunction
 
 ""
@@ -71,5 +75,5 @@ endfunction
 "
 " Github API : GET /users/:username/following/:target_user
 function! github#api#users#CheckTargetFollow(username,target) abort
-    return github#api#util#GetStatus(join(['users', a:username, 'following', a:target], '/'),[])
+  return github#api#util#GetStatus(join(['users', a:username, 'following', a:target], '/'),[])
 endfunction