restore compare_string_array new interface (make broken by landley)
diff --git a/include/libbb.h b/include/libbb.h
index 96dc46a..52d91c8 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -467,7 +467,7 @@
} procps_status_t;
extern procps_status_t * procps_scan(int save_user_arg0);
-extern unsigned short compare_string_array(const char *string_array[], const char *key);
+extern int compare_string_array(const char * const string_array[], const char *key);
extern int my_query_module(const char *name, int which, void **buf, size_t *bufsize, size_t *ret);