[PATCH] nntp: use trim_end_matches() to remove only \r and \n

Since trim_end() eliminates all trailing white space characters, a patch
gets corrupted when there is a line with trailing white space characters.

Closes: #320

Signed-off-by: Tetsuo Handa <[email protected]>
---
 src/nntp.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/nntp.rs b/src/nntp.rs
index a3315cd..9c3b20f 100644
--- a/src/nntp.rs
+++ b/src/nntp.rs
@@ -107,7 +107,7 @@ impl NntpClient {
             }
 
             let line_raw = String::from_utf8_lossy(&buf);
-            let line = line_raw.trim_end(); // remove \r\n
+            let line = line_raw.trim_end_matches(['\r', '\n']);
 
             if line == "." {
                 break;
@@ -164,7 +164,7 @@ impl NntpClient {
 
             // Convert to string (lossy)
             let line_raw = String::from_utf8_lossy(&buf);
-            let line = line_raw.trim_end(); // remove \r\n
+            let line = line_raw.trim_end_matches(['\r', '\n']);
 
             if line == "." {
                 break;
-- 
2.55.0