Correctly detect changes and non-changes. nicely highlight this by an
tree4d27ec14f6b61abdfced2ea1489c8a14bdfbd8f5
-rw-r--r-- 47 Makefile.am
-rwxr-xr-x 3350 autogen.sh
-rw-r--r-- 1006 configure.ac
drwxr-xr-x - src