Walk the app with dua-core in place of jwalk

CHANGELOG.md

@@ -31,6 +31,15 @@ Building pks from source now needs a C compiler and libclang.
 Releases no longer include a binary for Intel Macs (`x86_64-apple-darwin`),
 and the Apple Silicon binary is built on macOS 26.
 
+#### pks doesn't descend into a symlinked directory
+
+pks walks the app with [dua-core](https://crates.io/crates/dua-core) in place
+of jwalk, which is no longer maintained, and which followed symlinks. Like
+packwerk's globs, pks still reads a symlink to a file, but no longer descends
+into a symlinked directory, so it no longer finds the files or packs in one. A
+link to a directory that contains it, such as `loop -> ..`, made pks list the
+same files and packs over and over, and no longer does.
+
 ## 0.7.0
 
 ### Features

Cargo.toml

@@ -49,8 +49,8 @@ anyhow = { version = "1.0.75", features = [] }                         # for err
 clap = { version = "4.2.1", features = ["derive"] }                    # cli
 clap_derive = "4.2.0"                                                  # cli
 csv = "1.3.0"                                                          # csv de/serialize
+dua-core = "4.1.0"                                                     # for walking the file tree
 itertools = "0.15.0"                                                   # tools for iterating over iterable things
-jwalk = "0.9.0"                                                        # for walking the file tree
 path-clean = "1.0.1"                                                   # Pathname#cleaname in Ruby
 rayon = "1.10.0"                                                       # for parallel iteration
 regex = "1.7.3"