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-rw-r--r--lib/control.sh4
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/control.sh b/lib/control.sh
index f3f3a4f..b0576e0 100644
--- a/lib/control.sh
+++ b/lib/control.sh
@@ -17,8 +17,8 @@
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
-[ -n "${_OB_CONTROL_SM}" ] && return 0
-_OB_CONTROL_SM='true'
+[ x"${_OB_CONTROL_SM+set}" = x'set' ] && return 0
+_OB_CONTROL_SM=1
ob_use messages
ob_use locale