Add @mars370d.txt remote file to download_test_data (GenericMappingTools#1532)

Meghan Jones · Josh Sixsmith · commit c95ed00c9ea2 · 2022-12-21T17:22:14.000+11:00
diff --git a/pygmt/helpers/testing.py b/pygmt/helpers/testing.py
@@ -168,6 +168,7 @@ def download_test_data():
         "@fractures_06.txt",
         "@hotspots.txt",
         "@ridge.txt",
+        "@mars370d.txt",
         "@srtm_tiles.nc",  # needed for 03s and 01s relief data
         "@Table_5_11.txt",
         "@test.dat.nc",
