improve debug output

Change-Id: I7c5b8e67ee19e6a7d7909acb03d2d695cdc17a24
diff --git a/sysui/desktop/share/create_mime_xml.pl b/sysui/desktop/share/create_mime_xml.pl
index 92d4310..da2b198 100755
--- a/sysui/desktop/share/create_mime_xml.pl
+++ b/sysui/desktop/share/create_mime_xml.pl
@@ -99,7 +99,7 @@ sub getMimedata {
    $desktop_file = $mimedir.'/'.$desktop_name.'.desktop';
    $mimetype = "";
    $glob = "";
    open(DESKTOP_FILE, $desktop_file) || die 'Cannot open "desktop"-file.'.$!;
    open(DESKTOP_FILE, $desktop_file) || die "Cannot open desktop-file $desktop_file. ".$!;
    while (<DESKTOP_FILE>) {
        ## get mimetype
        if (/^MimeType=/) {