Check magic bytes before passing a file to Imlib2's loader

This works around a regression in Imlib2, which makes (un)loadable file
detection quite slow when handling e.g. large video files. See
<https://phab.enlightenment.org/T8739> and
<https://github.com/derf/feh/issues/505> for details.

Closes #505

1 files changed, 1 insertions, 1 deletions

diff --git a/test/feh.t b/test/feh.t
index baf5ee4..44f705f 100644
--- a/test/feh.t
+++ b/test/feh.t
@@ -47,7 +47,7 @@ if ( $version =~ m{ Compile-time \s switches : \s .* help }ox ) {
 }
 
 my $re_warning
-  = qr{${feh_name} WARNING: test/fail/... \- No Imlib2 loader for that file format\n};
+  = qr{${feh_name} WARNING: test/fail/... \- Does not look like an image \(magic bytes missing\)\n};
 my $re_loadable    = qr{test/ok/...};
 my $re_unloadable  = qr{test/fail/...};
 my $re_list_action = qr{test/ok/... 16x16};