hush: fix "var=val >file" not creating file

function                                             old     new   delta
static.null_ptr                                        -       4      +4
run_list                                            2018    2020      +2
handle_dollar                                        667     626     -41
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/1 up/down: 6/-41)             Total: -35 bytes

2 files changed, 42 insertions, 0 deletions

diff --git a/shell/hush_test/hush-misc/redir1.right b/shell/hush_test/hush-misc/redir1.right
new file mode 100644
index 0000000..ac90b4a
--- /dev/null
+++ b/shell/hush_test/hush-misc/redir1.right
@@ -0,0 +1,10 @@
+Test 1:  var:ok
+File created:ok
+Test 2:  var:ok
+File created:ok
+Test 3:  var:ok
+File created:ok
+Test 4:  var:ok
+File created:ok
+Test 5:  var:ok
+File created:ok
diff --git a/shell/hush_test/hush-misc/redir1.tests b/shell/hush_test/hush-misc/redir1.tests
new file mode 100755
index 0000000..5f6c206
--- /dev/null
+++ b/shell/hush_test/hush-misc/redir1.tests
@@ -0,0 +1,32 @@
+rm shell_test_$$ 2>/dev/null
+var=bad
+var=ok >shell_test_$$
+echo "Test 1:  var:$var"
+test -f shell_test_$$ && echo "File created:ok"
+
+rm shell_test_$$ 2>/dev/null
+var=ok
+true | var=bad >shell_test_$$
+echo "Test 2:  var:$var"
+test -f shell_test_$$ && echo "File created:ok"
+
+rm shell_test_$$ 2>/dev/null
+var=bad
+{ var=ok >shell_test_$$; }
+echo "Test 3:  var:$var"
+test -f shell_test_$$ && echo "File created:ok"
+
+rm shell_test_$$ 2>/dev/null
+var=ok
+{ var=bad >shell_test_$$; } &
+usleep 100000
+echo "Test 4:  var:$var"
+test -f shell_test_$$ && echo "File created:ok"
+
+rm shell_test_$$ 2>/dev/null
+var=ok
+( var=bad >shell_test_$$ )
+echo "Test 5:  var:$var"
+test -f shell_test_$$ && echo "File created:ok"
+
+rm shell_test_$$ 2>/dev/null