don't reset visibility modifier in the M5SM case

diff --git a/simgear/environment/metar.cxx b/simgear/environment/metar.cxx
index 9342c5482cd57be5a88186365bba48b515ccba7f..a19e48bffb96fe01907733da3d2d4e24d76c26d4 100644 (file)
--- a/simgear/environment/metar.cxx
+++ b/simgear/environment/metar.cxx
@@ -493,7 +493,6 @@ bool SGMetar::scanVisibility()
                distance = i;
        } else {
 // M?(\d{1,2}|\d{1,2}/\d{1,2}|\d{1,2} \d{1,2}/\d{1,2})(SM|KM)
-               modifier = 0;
                if (*m == 'M')
                        m++, modifier = SGMetarVisibility::LESS_THAN;