Non-bracketed paste support for DOS CRLFs.

When pasting in non-bracketed more, all line endings (including
DOS-style CRLFs) get normalized to a single CR to simulate a keypress of
the <return> key.

src/input.rs

@@ -240,7 +240,13 @@ impl Action {
             ctx.write_to_pty(contents.into_bytes());
             ctx.write_to_pty(&b"\x1b[201~"[..]);
         } else {
-            ctx.write_to_pty(contents.replace("\n","\r").into_bytes());
+            // In non-bracketed (ie: normal) mode, terminal applications cannot distinguish
+            // pasted data from keystrokes.
+            // In theory, we should construct the keystrokes needed to produce the data we are
+            // pasting... since that's neither practical nor sensible (and probably an impossible
+            // task to solve in a general way), we'll just replace line breaks (windows and unix
+            // style) with a singe carriage return (\r, which is what the Enter key produces).
+            ctx.write_to_pty(contents.replace("\r\n","\r").replace("\n","\r").into_bytes());
         }
     }
 }