Make unicode_database_version() prototype match docs & code
diff --git a/ucd.h.in b/ucd.h.in
index 3e9a924..3f557b0 100644
--- a/ucd.h.in
+++ b/ucd.h.in
@@ -121,6 +121,6 @@
 const struct unicode_character_data *unicode_character_get(const struct unicode_character_data *);
 void unicode_character_put(const struct unicode_character_data *);
 const struct unicode_character_data *unicode_character_lookup(const char *);
-extern const int unicode_database_version[3];
+int unicode_database_version(void);
 
 #endif /* UCD_H */