Cleanup: Point cloud vs point-cloud in comments

Point cloud is two separate words, this just changes comments in
a few places where we were inconsistent. A small wording change
to another comment is also included.

source/blender/blenkernel/BKE_geometry_set.hh

@@ -264,8 +264,8 @@ inline constexpr bool is_geometry_component_v = std::is_base_of_v<GeometryCompon
  * individual components might be shared between multiple geometries and other code. Shared
  * components are copied automatically when write access is requested.
  *
- * The components usually do not store data by them self, but keep a reference to a data structure
- * defined elsewhere in Blender. There is at most one component of each type:
+ * The components usually do not store data directly, but keep a reference to a data
+ * structure defined elsewhere. There is at most one component of each type:
  *  - #MeshComponent
  *  - #CurveComponent
  *  - #PointCloudComponent
@@ -559,7 +559,7 @@ class MeshComponent : public GeometryComponent {
  * A geometry component that stores a point cloud, corresponding to the #PointCloud data structure.
  * While a point cloud is technically a subset of a mesh in some respects, it is useful because of
  * its simplicity, partly on a conceptual level for the user, but also in the code, though partly
- * for historical reasons. Point-clouds can also be rendered in special ways, based on the built-in
+ * for historical reasons. Point clouds can also be rendered in special ways, based on the built-in
  * `radius` attribute.
  *
  * Attributes on point clouds are all stored in contiguous arrays in its #CustomData,

source/blender/blenkernel/BKE_pointcloud.h

@@ -18,7 +18,7 @@
 
 /** \file
  * \ingroup bke
- * \brief General operations for point-clouds.
+ * \brief General operations for point clouds.
  */
 #ifdef __cplusplus
 extern "C" {

source/blender/blenkernel/intern/geometry_set_instances.cc

@@ -74,7 +74,7 @@ GeometrySet object_get_evaluated_geometry_set(const Object &object)
     add_final_mesh_as_geometry_component(object, geometry_set);
   }
 
-  /* TODO: Cover the case of point-clouds without modifiers-- they may not be covered by the
+  /* TODO: Cover the case of point clouds without modifiers-- they may not be covered by the
    * #geometry_set_eval case above. */
 
   /* TODO: Add volume support. */

source/blender/editors/object/object_add.c

@@ -3101,11 +3101,11 @@ static int object_convert_exec(bContext *C, wmOperator *op)
         basen = duplibase_for_convert(bmain, depsgraph, scene, view_layer, base, NULL);
         newob = basen->object;
 
-        /* Decrement original point-cloud's usage count. */
+        /* Decrement original point cloud's usage count. */
         PointCloud *pointcloud = newob->data;
         id_us_min(&pointcloud->id);
 
-        /* Make a new copy of the point-cloud. */
+        /* Make a new copy of the point cloud. */
         newob->data = BKE_id_copy(bmain, &pointcloud->id);
       }
       else {

source/blender/editors/object/object_modifier.c

@@ -714,7 +714,7 @@ static bool modifier_apply_shape(Main *bmain,
     BKE_id_free(NULL, mesh_applied);
   }
   else {
-    /* TODO: implement for hair, point-clouds and volumes. */
+    /* TODO: implement for hair, point clouds and volumes. */
     BKE_report(reports, RPT_ERROR, "Cannot apply modifier for this object type");
     return false;
   }
@@ -813,7 +813,7 @@ static bool modifier_apply_obdata(
     DEG_id_tag_update(&ob->id, ID_RECALC_GEOMETRY);
   }
   else {
-    /* TODO: implement for hair, point-clouds and volumes. */
+    /* TODO: implement for hair, point clouds and volumes. */
     BKE_report(reports, RPT_ERROR, "Cannot apply modifier for this object type");
     return false;
   }

source/blender/nodes/geometry/nodes/legacy/node_geo_legacy_attribute_transfer.cc

@@ -403,7 +403,7 @@ static void transfer_attribute_nearest(const GeometrySet &src_geometry,
                                                                                         data_type);
     for (const int i : IndexRange(tot_samples)) {
       if (pointcloud_distances_sq[i] < mesh_distances_sq[i]) {
-        /* Point-cloud point is closer. */
+        /* Point cloud point is closer. */
         const int index = pointcloud_indices[i];
         pointcloud_src_attribute.varray.get(index, buffer);
         dst_attribute->set_by_relocate(i, buffer);

source/blender/nodes/geometry/nodes/node_geo_transfer_attribute.cc

@@ -501,7 +501,7 @@ class NearestTransferFunction : public fn::MultiFunction {
     Array<int> mesh_indices;
     Array<float> mesh_distances;
 
-    /* If there is a point-cloud, find the closest points. */
+    /* If there is a point cloud, find the closest points. */
     if (use_points_) {
       point_indices.reinitialize(tot_samples);
       if (use_mesh_) {