Add missing exit value.

lib/util/regress/parse_gids/parse_gids_test.c

@@ -110,4 +110,5 @@ main(int argc, char *argv[])
 	printf("%s: %d tests run, %d errors, %d%% success rate\n",
 	    getprogname(), ntests, errors, (ntests - errors) * 100 / ntests);
     }
+    exit(errors);
 }

lib/util/regress/strsplit/strsplit_test.c

@@ -107,4 +107,5 @@ main(int argc, char *argv[])
 	printf("%s: %d tests run, %d errors, %d%% success rate\n",
 	    getprogname(), ntests, errors, (ntests - errors) * 100 / ntests);
     }
+    exit(errors);
 }