hush: use ash's read builtin
function old new delta
shell_builtin_read - 1000 +1000
set_local_var_from_halves - 24 +24
setvar2 - 7 +7
...
popstring 140 134 -6
ash_main 1375 1368 -7
setvar 184 174 -10
arith_set_local_var 36 - -36
builtin_read 1096 185 -911
------------------------------------------------------------------------------
(add/remove: 3/1 grow/shrink: 5/23 up/down: 1038/-1007) Total: 31 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/shell/hush_test/hush-read/read_r.right b/shell/hush_test/hush-read/read_r.right
new file mode 100644
index 0000000..3536bf7
--- /dev/null
+++ b/shell/hush_test/hush-read/read_r.right
@@ -0,0 +1,2 @@
+testbest
+test\