regex: Proper define for this thing
diff --git a/deps/regex/regex_internal.h b/deps/regex/regex_internal.h
index aa38207..53ccebe 100644
--- a/deps/regex/regex_internal.h
+++ b/deps/regex/regex_internal.h
@@ -28,11 +28,11 @@
#include <string.h>
#ifndef UNUSED
-#ifdef __GNUC__
-#define UNUSED __attribute__((unused))
-#endif
-#else
-#define UNUSED
+# ifdef __GNUC__
+# define UNUSED __attribute__((unused))
+# else
+# define UNUSED
+# endif
#endif
#if defined HAVE_LANGINFO_H || defined HAVE_LANGINFO_CODESET || defined _LIBC