update_input_line_when_finished: Send error messages to pipe

Where we had previously `die`d, instead send those error messages to our
pipe so they can be printed by the parent process using:

    Irssi::print(<error>, MSGLEVEL_CLIENTERROR);

1 files changed, 6 insertions, 2 deletions

diff --git a/vimput.pl b/vimput.pl
index 042f830..0305c6c 100644
--- a/vimput.pl
+++ b/vimput.pl
@@ -93,14 +93,18 @@ sub update_input_line_when_finished {
 		};
 
 		mkfifo($fifo_path, 0600) or do {
+			print $write_handle ERROR_PREFIX . "Failed to make FIFO: $!";
+
 			cleanup();
-			# die $!;
+
 			POSIX::_exit(1);
 		};
 
 		open my $fifo, '<', $fifo_path or do {
+			print $write_handle ERROR_PREFIX . "Failed to open FIFO: $!";
+
 			cleanup();
-			# die $!;
+
 			POSIX::_exit(1);
 		};
 		$fifo->autoflush(1);