timestamps in binaries are considered bugs:

[  333s] /usr/src/debug/syslinux-4.04/libinstaller/bootsect_bin.c differs
(ASCII text)
[  333s] --- old//usr/src/debug/syslinux-4.04/libinstaller/bootsect_bin.c      
2015-01-22 02:59:56.000000000 +0000
[  333s] +++ new//usr/src/debug/syslinux-4.04/libinstaller/bootsect_bin.c      
2015-01-30 15:28:03.000000000 +0000
[  333s] @@ -36,8 +36,8 @@
[  333s]        0x01, 0x74, 0x05, 0xc6, 0x06, 0x46, 0x7d, 0x00,
[  333s]        0x66, 0xb8, 0xef, 0xbe, 0xad, 0xde, 0x66, 0xba,
[  333s]        0xce, 0xfa, 0xed, 0xfe, 0xbb, 0x00, 0x7e, 0xe8,
[  333s] -      0x0e, 0x00, 0x66, 0x81, 0x3e, 0x1c, 0x7e, 0xd4,
[  333s] -      0x65, 0x72, 0x6a, 0x75, 0x74, 0xe9, 0xf8, 0x00,
[  333s] +      0x0e, 0x00, 0x66, 0x81, 0x3e, 0x1c, 0x7e, 0x8c,
[  333s] +      0xa0, 0x79, 0x6a, 0x75, 0x74, 0xe9, 0xf8, 0x00,
[  333s]        0x66, 0x03, 0x06, 0x60, 0x7b, 0x66, 0x13, 0x16,
[  333s]        0x64, 0x7b, 0xb9, 0x10, 0x00, 0xeb, 0x2b, 0x66,
[  333s]        0x52, 0x66, 0x50, 0x06, 0x53, 0x6a, 0x01, 0x6a,
[  333s] @@ -67,4 +67,4 @@
[  333s]  
[  333s]  const unsigned int syslinux_bootsect_len = 512;
[  333s]  
[  333s] -const int syslinux_bootsect_mtime = 1421895471;
[  333s] +const int syslinux_bootsect_mtime = 1422631543;