update changes.txt + cleanup

docs/changes.txt

@@ -82,6 +82,7 @@
 - User Options: Added error message when mixing --username and --show to warn users of exponential delay
 - MetaMask: update extraction tool to support MetaMask Mobile wallets
 - Metal Backend: added workaround to prevent 'Infinite Loop' bug when build kernels
+- User Options: added --metal-compiler-runtime option
 
 * changes v6.2.5 -> v6.2.6
 

src/user_options.c

@@ -737,8 +737,7 @@ int user_options_sanity (hashcat_ctx_t *hashcat_ctx)
     return -1;
   }
 
-  // --metal-compiler-runtime is really used only on Apple,
-  // but is useless to expose only on Apple
+  // --metal-compiler-runtime is really used only on Apple
 
   if (user_options->metal_compiler_runtime_chgd == true && user_options->metal_compiler_runtime == 0)
   {