Improve error message.

1 files changed, 1 insertions, 1 deletions

diff --git a/gis-observation-map b/gis-observation-map
index d3051cf..5b750f0 100755
--- a/gis-observation-map
+++ b/gis-observation-map
@@ -66,7 +66,7 @@ parser.add_argument('--topo-basedir', default='.', help='Base directory for "Top
 parser.add_argument('--project-name', help='Project filename (and title)')
 parser.add_argument('--project-home', help='Project home directory')
 parser.add_argument('--geometry', nargs='*', default=[], help='Geometry filename(s)')
-parser.add_argument('--point', nargs='*', default=[], help=f'Coordinates of interest (X,Y in {target_srs.GetName()})')
+parser.add_argument('--point', nargs='*', metavar='X,Y', default=[], help=f'Coordinates of interest (in {target_srs.GetName()})')
 parser.add_argument('--observation-format', default='GPKG', help='Format for the observation file (default: %(default)s)')
 
 args = parser.parse_args()