Minor fix to makefile

Summary: unit_481 is misspelt. Fixing it.

Test Plan: Running make commit_prereq

Reviewers: leveldb

Subscribers: dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D53757

Makefile

@@ -1207,8 +1207,8 @@ jdb_bench:
 
 commit_prereq: build_tools/rocksdb-lego-determinator \
                build_tools/precommit_checker.py
+	build_tools/precommit_checker.py unit unit_481 clang_unit tsan asan lite
 	$(MAKE) clean && $(MAKE) jclean && $(MAKE) rocksdbjava;
-	build_tools/precommit_checker.py unit uint_481 clang_unit tsan asan lite
 
 xfunc:
 	for xftest in $(XFUNC_TESTS); do \