.gitignore in judge_system-1.7.3 vs .gitignore in judge_system-1.7.4

@@ -5,6 +5,6 @@
 /coverage/
 /doc/
 /pkg/
 /spec/reports/
 /tmp/
-/lib/old_compile_systems/
\ No newline at end of file
+/lib/old_compile_systems/