From 4889128edefa9293a15e7c8febce35ede94ef1b0 Mon Sep 17 00:00:00 2001
From: Michael Kefeder <m.kefeder@gmail.com>
Date: Fri, 29 Apr 2022 10:57:36 +0200
Subject: [PATCH] ptx: add documentation to read_char_filter_file function

---
 src/uu/ptx/src/ptx.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/uu/ptx/src/ptx.rs b/src/uu/ptx/src/ptx.rs
index 64fe421ad..c273b976c 100644
--- a/src/uu/ptx/src/ptx.rs
+++ b/src/uu/ptx/src/ptx.rs
@@ -88,6 +88,7 @@ fn read_word_filter_file(
     Ok(words)
 }
 
+/// reads contents of file as unique set of characters to be used with the break-file option
 fn read_char_filter_file(
     matches: &clap::ArgMatches,
     option: &str,