Update ldd.go

[mkunz7]

ubuntu 16.04 gives different output for ldd from ubuntu 18.04 this quick change makes it so you can build containers on 16.04 haven't thoroughly tested

[mkunz7]

root@u1804:/opt/minimega/misc/uminirouter# ldd uminirouterfs/miniccc
	linux-vdso.so.1 (0x00007ffdbf7e3000)
	libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f5143391000)
	libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f5142fa0000)
	/lib64/ld-linux-x86-64.so.2 (0x00007f51435b0000)

root@u1604:/opt/minimega/misc/uminirouter# ldd uminirouterfs/miniccc
	linux-vdso.so.1 =>  (0x00007ffed19f3000)
	libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fd0dd8e7000)
	libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fd0dd51d000)
	/lib64/ld-linux-x86-64.so.2 (0x00007fd0ddb04000)

[aherna]

LGTM