fix mkdir style in spec-file

sasl/sasl.spec

@@ -234,8 +234,8 @@ AutoReqProv:  no
 
     #   create necessary additional directories
     %{l_shtool} mkdir -f -p -m 755 \
-        $RPM_BUILD_ROOT%{l_prefix}/var/sasl/log/ \
-        $RPM_BUILD_ROOT%{l_prefix}/var/sasl/saslauthd/ \
+        $RPM_BUILD_ROOT%{l_prefix}/var/sasl/log \
+        $RPM_BUILD_ROOT%{l_prefix}/var/sasl/saslauthd \
         $RPM_BUILD_ROOT%{l_prefix}/etc/sasl/apps
 
     #   install run-command script