[libmanette] mapping: Make some error messages more explicit

[Adrien Plazas <aplazas src gnome org>]

commit c3bd49cb3fab36480501424ad0445b5fa03a5f08
Author: Adrien Plazas <kekun plazas laposte net>
Date:   Sat Nov 21 09:35:39 2020 +0100

    mapping: Make some error messages more explicit

 src/manette-mapping.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/manette-mapping.c b/src/manette-mapping.c
index 0aa00c2..7a8e899 100644
--- a/src/manette-mapping.c
+++ b/src/manette-mapping.c
@@ -463,7 +463,7 @@ set_from_mapping_string (ManetteMapping *self,
       continue;
 
     if (!parse_mapping_destination (destination_string, &binding)) {
-      g_critical ("Invalid mapping destination: %s", splitted_mapping[0]);
+      g_critical ("Invalid binding destination: %s:%s in %s", destination_string, source_string, 
mapping_string);
 
       continue;
     }
@@ -475,7 +475,7 @@ set_from_mapping_string (ManetteMapping *self,
     }
 
     if (!parse_mapping_source (source_string, &binding)) {
-      g_critical ("Invalid mapping source: %s", splitted_mapping[1]);
+      g_critical ("Invalid binding source: %s:%s in %s", destination_string, source_string, mapping_string);
 
       continue;
     }