ash: fix another bug detected by var_bash4.tests

... but var_bash4.tests still does not pass!

function                                             old     new   delta
expandarg                                            959     962      +3
localcmd                                             259     257      -2
readtoken1                                          3275    3260     -15
subevalvar                                          1178    1141     -37
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/3 up/down: 3/-54)             Total: -51 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/shell/ash.c b/shell/ash.c
index 74b1c3aad..dcac4fe04 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -6272,6 +6272,8 @@ parse_sub_pattern(char *arg, int varflags)
         char *idx, *repl = NULL;
         unsigned char c;
 
+        //char *org_arg = arg;
+        //bb_error_msg("arg:'%s'", arg);
         idx = arg;
         while (1) {
                 c = *arg;
@@ -6290,6 +6292,7 @@ parse_sub_pattern(char *arg, int varflags)
                 arg++;
         }
         *idx = c; /* NUL */
+        //bb_error_msg("pattern:'%s' repl:'%s'", org_arg, repl);
 
         return repl;
 }
@@ -6499,8 +6502,6 @@ subevalvar(char *p, char *varname, int strloc, int subtype,
                                 //bb_error_msg("tail:'%s', quotes:%x", idx, quotes);
                                 while (*idx) {
                                         char *restart_detect = stackblock();
-                                        if (quotes && (unsigned char)*idx == CTLESC)
-                                                idx++;
                                         STPUTC(*idx, expdest);
                                         if (stackblock() != restart_detect)
                                                 goto restart;