Cleanup: spelling in comments

Also remove redundant comment.

source/blender/blenlib/intern/BLI_mempool.c

@@ -106,8 +106,8 @@ typedef struct BLI_mempool_chunk {
  * The mempool, stores and tracks memory \a chunks and elements within those chunks \a free.
  */
 struct BLI_mempool {
-  /* Serialize access to mempools when debugging wih ASAN. */
 #ifdef WITH_ASAN
+  /** Serialize access to memory-pools when debugging with ASAN. */
   ThreadMutex mutex;
 #endif
   /** Single linked list of allocated chunks. */

source/blender/makesdna/DNA_fluid_types.h

@@ -687,10 +687,12 @@ typedef struct FluidDomainSettings {
   int viewsettings;
   char _pad12[4]; /* Unused. */
 
-  /* Pointcache options. */
-  /* Smoke uses only one cache from now on (index [0]), but keeping the array for now for reading
-   * old files. */
-  struct PointCache *point_cache[2]; /* Definition is in DNA_object_force_types.h. */
+  /**
+   * Point-cache options.
+   * Smoke uses only one cache from now on (index [0]),
+   * but keeping the array for now for reading old files.
+   */
+  struct PointCache *point_cache[2];
   struct ListBase ptcaches[2];
   int cache_comp;
   int cache_high_comp;

tools/check_source/check_spelling_c_config.py

@@ -79,6 +79,7 @@ dict_custom = {
     "decrement",
     "decrementing",
     "deduplicate",
+    "deduplicates",
     "deduplicating",
     "deduplication",
     "defocus",
@@ -88,6 +89,7 @@ dict_custom = {
     "denoised",
     "denoiser",
     "denoising",
+    "denormalized",
     "dereference",
     "dereferenced",
     "dereferences",