LibLine: Change get_line to return a Result<String, Error>

This fixes a bunch of FIXME's in LibLine.
Also handles the case where read() would read zero bytes in vt_dsr() and
effectively block forever by erroring out.

Fixes #2370

1 files changed, 1 insertions, 1 deletions

diff --git a/Shell/Shell.h b/Shell/Shell.h
index cbd92e02c7..63be56c69a 100644
--- a/Shell/Shell.h
+++ b/Shell/Shell.h
@@ -123,7 +123,7 @@ public:
     bool should_read_more() const { return m_should_continue != ContinuationRequest::Nothing; }
     void finish_command() { m_should_break_current_command = true; }
 
-    void read_single_line();
+    bool read_single_line();
 
     struct termios termios;
     struct termios default_termios;