Mage: ST export minor change.

src/Solver/Mage.py

@@ -200,9 +200,9 @@ class Mage(CommandLineSolver):
         wfile.write(f"{num}{c1}{c2}{t} {kp} {pname} {sediment}\n")
 
     def _export_ST_point_line(self, wfile, files, point):
-        x = f"{point.x:<12f}"[0:12]
-        y = f"{point.y:<12f}"[0:12]
-        z = f"{point.z:<12f}"[0:12]
+        x = f"{point.x:<12.4f}"[0:12]
+        y = f"{point.y:<12.4f}"[0:12]
+        z = f"{point.z:<12.4f}"[0:12]
         n = f"{point.name:<3}"
 
         # Generate sediment additional data if available