c/{client,main,util}: Improve comments

src/xrt/compositor/client/comp_vk_client.c

@@ -917,7 +917,7 @@ client_vk_compositor_create(struct xrt_compositor_native *xcn,
 		return c;
 	}
 
-	// Create a dummy VkCommandBuffer and submit it to the VkQueue, just for inserting a debug label into
+	// Create a no-op VkCommandBuffer and submit it to the VkQueue, just for inserting a debug label into
 	// RenderDoc for triggering the capture.
 	ret = vk_cmd_pool_create_begin_insert_label_and_end_cmd_buffer_locked(
 	    vk, &c->pool, "vr-marker,frame_end,type,application", &c->dcb);

src/xrt/compositor/main/comp_renderer.c

@@ -862,7 +862,7 @@ dispatch_graphics(struct comp_renderer *r,
 	// Resources for the distortion render target.
 	struct render_gfx_target_resources *rtr = &r->rtr_array[r->acquired_buffer];
 
-	// Sanity check.
+	// Consistency check.
 	assert(!fast_path || c->base.slot.layer_count >= 1);
 
 	// Viewport information.

src/xrt/compositor/util/comp_render_gfx.c

@@ -811,7 +811,7 @@ comp_render_gfx_dispatch(struct render_gfx *rr,
 	// Only used if fast_path is true.
 	const struct comp_layer *layer = &layers[0];
 
-	// Sanity check.
+	// Consistency check.
 	assert(!fast_path || layer_count >= 1);
 
 	if (fast_path && layer->data.type == XRT_LAYER_PROJECTION) {