[tracker] tracker-extract: Silence Coverity warning

[Carlos Garnacho <carlosg src gnome org>]

commit 5dfe675f32014dd30ca3cbbda943e97741c95283
Author: Carlos Garnacho <carlosg gnome org>
Date:   Wed Dec 14 19:57:51 2016 +0100

    tracker-extract: Silence Coverity warning
    
    The return value of g_file_load_contents() is not used. We checked
    the returned error instead so the code is equivalent, but directly
    checking the return value seems more readable.

 src/tracker-extract/tracker-cue-sheet.c |    4 +---
 1 files changed, 1 insertions(+), 3 deletions(-)
---
diff --git a/src/tracker-extract/tracker-cue-sheet.c b/src/tracker-extract/tracker-cue-sheet.c
index 5e1b650..39722d9 100644
--- a/src/tracker-extract/tracker-cue-sheet.c
+++ b/src/tracker-extract/tracker-cue-sheet.c
@@ -380,9 +380,7 @@ tracker_cue_sheet_parse_uri (const gchar *uri)
 
                cue_sheet_file = n->data;
 
-               g_file_load_contents (cue_sheet_file, NULL, &buffer, NULL, NULL, &error);
-
-               if (error != NULL) {
+               if (!g_file_load_contents (cue_sheet_file, NULL, &buffer, NULL, NULL, &error)) {
                        g_debug ("Unable to read cue sheet: %s", error->message);
                        g_error_free (error);
                        continue;