Syntax fixes.

gprMax/cmds_geometry/cylinder.py

@@ -124,4 +124,4 @@ class Cylinder(UserObjectGeometry):
         dielectricsmoothing = 'on' if averaging else 'off'
         log.info(f"Cylinder with face centres {x1:g}m, {y1:g}m, {z1:g}m and {x2:g}m, \
                  {y2:g}m, {z2:g}m, with radius {r:g}m, of material(s) {', '.join(materialsrequested)} \
-                 created, dielectric smoothing is {dielectricsmoothing}."
+                 created, dielectric smoothing is {dielectricsmoothing}.")

gprMax/cmds_geometry/triangle.py

@@ -162,6 +162,6 @@ class Triangle(UserObjectGeometry):
                      {thickness:g}m of material(s) {', '.join(materialsrequested)} \
                      created, dielectric smoothing is {dielectricsmoothing}.")
         else:
-            log.info(f'Triangle with coordinates {x1:g}m {y1:g}m {z1:g}m, \
+            log.info(f"Triangle with coordinates {x1:g}m {y1:g}m {z1:g}m, \
                      {x2:g}m {y2:g}m {z2:g}m, {x3:g}m {y3:g}m {z3:g}m of \
-                     material(s) {', '.join(materialsrequested)} created.')
+                     material(s) {', '.join(materialsrequested)} created.")