hush: document buggy handling of duplicate "local"

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

diff --git a/shell/hush_test/hush-bugs/var3.right b/shell/hush_test/hush-bugs/var3.right
new file mode 100644 (file)
index 0000000..8eb0e33
--- /dev/null
+++ b/shell/hush_test/hush-bugs/var3.right
@@ -0,0 +1,5 @@
+1
+1
+
+
+0

diff --git a/shell/hush_test/hush-bugs/var3.tests b/shell/hush_test/hush-bugs/var3.tests
new file mode 100755 (executable)
index 0000000..97b102c
--- /dev/null
+++ b/shell/hush_test/hush-bugs/var3.tests
@@ -0,0 +1 @@
+x=0; f() { local x=1; echo $x; local x; echo $x; unset x; echo $x; local x; echo $x; }; f; echo $x