match: add narrowmatcher class
This class can be used to adapt an existing match object to a new
match object that only cares about paths within a certain
subdirectory.
adding a
79abf14474dc tip
% make sure we notice the change of mode if the cached size == -1
n 0 -1 unset a
M a
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
d69afc33ff8a
not executable -- whew