msh: fix for bug 846 ("break" didn't work second time)

msh: don't use floating point in "times" builtin
+4 bytes difference

shell/msh_test/TODO_bug846

@@ -0,0 +1,29 @@
+#!/bin/sh
+# For future msh testsuite:
+# Testcase for http://bugs.busybox.net/view.php?id=846
+
+n=0
+while :
+do
+        echo A
+        while :
+        do
+    		echo B
+                break
+        done
+        echo iteration
+        [ $n = 1 ] && break
+	echo C
+        n=`expr $n + 1`
+done
+echo D
+
+# output should be:
+# A
+# B
+# iteration
+# C
+# A
+# B
+# iteration
+# D