msg cosmetics (https://trac.osgeo.org/grass/ticket/1997)

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@56956 15284696-431f-4ddb-bdfa-cd5b030d7da7

imagery/i.landsat.toar/main.c

@@ -100,7 +100,7 @@ int main(int argc, char *argv[])
     sensor->key = "sensor";
     sensor->type = TYPE_STRING;
     sensor->label = _("Spacecraft sensor");
-    sensor->description = _("Required only if 'metfile' not given (recommended by sanity)");
+    sensor->description = _("Required only if 'metfile' not given (recommended for sanity)");
     sensor->options = "mss1,mss2,mss3,mss4,mss5,tm4,tm5,tm7,ot8";
     desc = NULL;
     G_asprintf(&desc,