ciall: Specify "." to git status to avoid false positives

Changes in other directory trees aren't committed, so get rid of them in
"git status".

039cdfb0-4455-11e4-b937-c80aa9e67bbd
installed_progs.t: Add colordiff

a7c4aad4-4453-11e4-aa16-c80aa9e67bbd
installed_progs.t: Remove descriptions from installed()

b4e51e46-4454-11e4-821d-c80aa9e67bbd