* Help text for all (non-script) programs, so no more:

$ nix-instantiate --help
error: unknown flag `--help`
Try `nix-instantiate --help' for more information.

:-)

src/nix-store/main.cc

@@ -12,14 +12,12 @@
 typedef void (* Operation) (Strings opFlags, Strings opArgs);
 
 
-static void printHelp()
+void printHelp()
 {
     cout << string((char *) helpText, sizeof helpText);
-    exit(0);
 }
 
 
-
 static Path checkPath(const Path & arg)
 {
     return arg; /* !!! check that arg is in the store */
@@ -276,12 +274,6 @@ void run(Strings args)
             op = opInit;
         else if (arg == "--verify")
             op = opVerify;
-        else if (arg == "--verbose" || arg == "-v")
-            verbosity = (Verbosity) ((int) verbosity + 1);
-        else if (arg == "--keep-failed" || arg == "-K")
-            keepFailed = true;
-        else if (arg == "--help")
-            printHelp();
         else if (arg[0] == '-')
             opFlags.push_back(arg);
         else