main.c, lib.c: move error formatting logic to lib.c

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

1 files changed, 2 insertions, 0 deletions

diff --git a/lib.h b/lib.h
index 038350e..9a23d56 100644
--- a/lib.h
+++ b/lib.h
@@ -23,4 +23,6 @@ typedef struct json_object *(ut_c_fn)(struct ut_state *, struct ut_opcode *, str
 
 void ut_lib_init(struct ut_state *state, struct json_object *scope);
 
+char *ut_format_error(struct ut_state *state, const char *expr);
+
 #endif /* __LIB_H_ */