[gimp/gimp-2-10] plug-ins: replace a few occurrences of g_message with g_set_error in psp reader.

[Jehan <jehanp src gnome org>]

commit 6421a05549d3f65afe33d70ad1dc8bf2e950edc3
Author: Jacob Boerema <jgboerema gmail com>
Date:   Sat Sep 5 22:41:59 2020 -0400

    plug-ins: replace a few occurrences of g_message with g_set_error in psp reader.
    
    (cherry picked from commit 0a8f5b99f562f8726af8c260fe7f03185a5d9758)

 plug-ins/common/file-psp.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)
---
diff --git a/plug-ins/common/file-psp.c b/plug-ins/common/file-psp.c
index 2d0e9c9242..ae935819cb 100644
--- a/plug-ins/common/file-psp.c
+++ b/plug-ins/common/file-psp.c
@@ -789,7 +789,8 @@ read_general_image_attribute_block (FILE     *f,
 
   if (init_len < 38 || total_len < 38)
     {
-      g_message ("Invalid general image attribute chunk size");
+      g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
+                   _("Invalid general image attribute chunk size."));
       return -1;
     }
 
@@ -810,7 +811,8 @@ read_general_image_attribute_block (FILE     *f,
       || (psp_ver_major >= 4 && fread (graphics_content, 4, 1, f) < 1)
       || try_fseek (f, chunk_start + init_len, SEEK_SET, error) < 0)
     {
-      g_message ("Error reading general image attribute block");
+      g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
+                   _("Error reading general image attribute block."));
       return -1;
     }
   ia->width = GUINT32_FROM_LE (ia->width);
@@ -824,14 +826,16 @@ read_general_image_attribute_block (FILE     *f,
   ia->compression = GUINT16_FROM_LE (ia->compression);
   if (ia->compression > PSP_COMP_LZ77)
     {
-      g_message ("Unknown compression type %d", ia->compression);
+      g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
+                   _("Unknown compression type %d"), ia->compression);
       return -1;
     }
 
   ia->depth = GUINT16_FROM_LE (ia->depth);
   if (ia->depth != 24)
     {
-      g_message ("Unsupported bit depth %d", ia->depth);
+      g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
+                   _("Unsupported bit depth %d"), ia->depth);
       return -1;
     }