support funky MONTROME name (Monte_Mario)

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@34437 15284696-431f-4ddb-bdfa-cd5b030d7da7

lib/proj/convert.c

@@ -730,6 +730,8 @@ static const char *papszDatumEquiv[] = {
     "New_Zealand_Geodetic_Datum_2000",
     "Monte_Mario_Rome",
     "Monte_Mario",
+    "MONTROME",
+    "Monte_Mario",
     "Campo_Inchauspe_1969",
     "Campo_Inchauspe",
     "S_JTSK_Ferro",