From 5ad87a93fefcb94ee5f28de8d75903b2550c8d94 Mon Sep 17 00:00:00 2001
From: Ebrahim Byagowi <ebrahim@gnu.org>
Date: Wed, 25 Apr 2018 16:44:04 +0430
Subject: [PATCH] Minor, improve file reading failing condition comment

https://bugzilla.gnome.org/show_bug.cgi?id=659212 for more context
---
 src/hb-blob.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/hb-blob.cc b/src/hb-blob.cc
index d15a7cb3b..710765d10 100644
--- a/src/hb-blob.cc
+++ b/src/hb-blob.cc
@@ -577,7 +577,8 @@ hb_blob_create_from_file (const char *file_name)
   struct stat st;
   if (unlikely (fstat (fd, &st) == -1)) goto fail;
 
-  // If the file size is 0 and isn't regular, give up
+  // If the file size is 0 and is a regular file, give up
+  // See https://github.com/GNOME/glib/blob/f9faac7/glib/gmappedfile.c#L139-L142
   if (unlikely (st.st_size == 0 && S_ISREG (st.st_mode))) goto fail;
 
   file->length = (unsigned long) st.st_size;