[gimp] plug-ins: forward the error message if file-pat-save-internal fails

[Michael Natterer <mitch src gnome org>]

commit b71ebcea6df689668cfa08938973487613417da6
Author: Michael Natterer <mitch gimp org>
Date:   Sat Feb 16 18:59:01 2019 +0100

    plug-ins: forward the error message if file-pat-save-internal fails

 plug-ins/common/file-pat.c | 5 +++++
 1 file changed, 5 insertions(+)
---
diff --git a/plug-ins/common/file-pat.c b/plug-ins/common/file-pat.c
index 51c899d163..05c106a7ca 100644
--- a/plug-ins/common/file-pat.c
+++ b/plug-ins/common/file-pat.c
@@ -231,6 +231,11 @@ run (const gchar      *name,
             }
           else
             {
+              g_set_error (&error, 0, 0,
+                           "Running procedure 'file-pat-save-internal' "
+                           "failed: %s",
+                           gimp_get_pdb_error ());
+
               status = GIMP_PDB_EXECUTION_ERROR;
             }