remove exit marker in cleanup_and_exit

diff --git a/build b/build
index 1490764..b46b1c8 100755 (executable)
--- a/build
+++ b/build
@@ -267,6 +267,7 @@ usage () {
 cleanup_and_exit () {
     trap EXIT
     test -z "$1" && set 0
+    rm -f $BUILD_ROOT/exit
     if test -n "$RUNNING_IN_VM" ; then
        chown $browner $BUILD_ROOT
        cd /