bash: support home and end keys

This commit contains a patch of bash's built-in default escape sequences
to match the 'screen' terminal as used by Genode's terminal component.

Fixes #2705

repos/ports/ports/bash.hash

@@ -1 +1 @@
-684c11f9930bea31e50453bf0c26fa3411dfed0c
+02edac1a780fc13b59c3c8ad64cc6d390d1e9cc5

repos/ports/ports/bash.port

@@ -10,5 +10,6 @@ DIR(bash) := src/noux-pkg/bash
 
 PATCHES   := src/noux-pkg/bash/build.patch \
              src/noux-pkg/bash/check_dev_tty.patch \
-             src/noux-pkg/bash/disable_man2html.patch
+             src/noux-pkg/bash/disable_man2html.patch \
+             src/noux-pkg/bash/home_end.patch
 PATCH_OPT := -p1 -d src/noux-pkg/bash

repos/ports/src/noux-pkg/bash/home_end.patch

@@ -0,0 +1,18 @@
+This patch adjust the default encoding for the home and end keys to match the
+'screen' terminal as used by Genode. It is related to the following issue:
+
+  https://github.com/genodelabs/genode/issues/2705
+
+--- a/lib/readline/readline.c
++++ b/lib/readline/readline.c
+@@ -1293,8 +1293,8 @@
+   rl_bind_keyseq_if_unbound ("\033OB", rl_get_next_history);
+   rl_bind_keyseq_if_unbound ("\033OC", rl_forward_char);
+   rl_bind_keyseq_if_unbound ("\033OD", rl_backward_char);
+-  rl_bind_keyseq_if_unbound ("\033OH", rl_beg_of_line);
+-  rl_bind_keyseq_if_unbound ("\033OF", rl_end_of_line);
++  rl_bind_keyseq_if_unbound ("\033[1~", rl_beg_of_line);
++  rl_bind_keyseq_if_unbound ("\033[4~", rl_end_of_line);
+ 
+ #if defined (__MINGW32__)
+   rl_bind_keyseq_if_unbound ("\340H", rl_get_previous_history);