No longer include newlines in the message prompt for Term::ReadLine.

Instead, print the extra lines directly to STDOUT.

This fixes the backspace key when Term::ReadLine::Gnu::XS is not installed.

bin/straw-viewer

@@ -573,9 +573,7 @@ if ($opt{history}) {
     }
 
     # Add history to Term::ReadLine
-    if (eval { $term->can('ReadHistory') }) {
-        $term->ReadHistory($opt{history_file});
-    }
+    eval { $term->ReadHistory($opt{history_file}) };
 
     # All history entries
     my @history = $term->history_list;
@@ -1921,7 +1919,11 @@ sub get_user_input {
     my $input = unpack(
                        'A*', defined($opt{std_input})
                        ? delete($opt{std_input})
-                       : ($term->readline($text) // return ':return')
+                       : (do {
+                            my @lines = split(/\R/, $text);
+                            say for @lines[0..$#lines-1];
+                            $term->readline($lines[-1]);
+                        } // return ':return')
                       ) =~ s/^\s+//r;
 
     return q{:next} if $input eq q{};    # <ENTER> for the next page
@@ -4167,7 +4169,8 @@ sub print_videos {
 }
 
 sub press_enter_to_continue {
-    scalar $term->readline(colored("\n=>> Press ENTER to continue...", 'bold'));
+    say '';
+    scalar $term->readline(colored("=>> Press ENTER to continue...", 'bold'));
 }
 
 sub main_quit {