From 21fb0db6e271148e5c8970f0f9f4805bae2ca59a Mon Sep 17 00:00:00 2001
From: Federico Ceratto <federico.ceratto@gmail.com>
Date: Mon, 28 May 2018 00:35:19 +0100
Subject: [PATCH] Update existsFile documentation (#7888)

---
 lib/pure/os.nim | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/pure/os.nim b/lib/pure/os.nim
index 370420d37..3ff608cfc 100644
--- a/lib/pure/os.nim
+++ b/lib/pure/os.nim
@@ -70,7 +70,8 @@ when defined(windows):
 
 proc existsFile*(filename: string): bool {.rtl, extern: "nos$1",
                                           tags: [ReadDirEffect].} =
-  ## Returns true if the file exists, false otherwise.
+  ## Returns true if `filename` exists and is a regular file or symlink.
+  ## (directories, device files, named pipes and sockets return false)
   when defined(windows):
     when useWinUnicode:
       wrapUnary(a, getFileAttributesW, filename)