[gthumb] added a comment

[Paolo Bacchilega <paobac src gnome org>]

commit 9495e4c59765c96ba650976d83e781f5970ece4f
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Wed Jul 21 19:51:32 2010 +0200

    added a comment

 gthumb/gio-utils.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/gthumb/gio-utils.c b/gthumb/gio-utils.c
index 93ca9e0..1536665 100644
--- a/gthumb/gio-utils.c
+++ b/gthumb/gio-utils.c
@@ -1931,6 +1931,8 @@ g_load_file_in_buffer (GFile   *file,
 			break;
 		}
 
+		/* the '+ 1' here is used to allow to add a NULL character at the
+		 * end of the buffer. */
 		local_buffer = g_realloc (local_buffer, count + n + 1);
 		memcpy (local_buffer + count, tmp_buffer, n);
 		count += n;