docs: update

kiss

@@ -7,51 +7,7 @@
 # [1] Warnings related to word splitting and globbing are disabled.
 # All word splitting in this script is *safe* and intentional.
 #
-# REGARDING PORTABILITY
-#
-# - Anything with a specification should follow it (POSIX, BSD, etc).
-# - Anything without a specification which has ONLY a single (widely used)
-#   implementation will be considered portable (git, curl, etc).
-#
-#   POSIX utilities
-#   - sh        (POSIX)
-#   - find      (POSIX) -type f, -type d, -exec {} [+;], -o, -print, !
-#   - ls        (POSIX) -l, -d
-#   - sed       (POSIX) -n, s/<search>/<replace>/g, /<delete>/d
-#   - grep      (POSIX) -l, -F, -x, -f, -q, -v
-#   - sort      (POSIX) -r, -u, -k
-#   - tee       (POSIX) -a
-#   - date      (POSIX)
-#   - mkdir     (POSIX) -p
-#   - rm        (POSIX) -f, -r
-#   - rmdir     (POSIX)
-#   - cp        (POSIX) -f, -P, -p, -L, -R
-#   - mv        (POSIX) -f
-#   - chown     (POSIX) -h
-#   - diff      (POSIX) -U
-#
-#   Misc
-#   - su*       (sudo, doas, su) (in order, optional)
-#   - git       (downloads from git) (must link to curl)
-#   - curl      (downloads over http) (also needed by git)
-#   - sha256    (multiple fallbacks: sha256sum, shasum, sha256, openssl, etc)
-#
-#   Compiler/libc utilities (depends cc & libc)
-#   - readelf   (optional) (Part of compiler toolchain) (GNU, LLVM or elfutils)
-#   - strip     (optional) (Part of compiler toolchain) (GNU, LLVM or elfutils)
-#   - ldd       (optional) (Part of libc)
-#
-#   Tarball compression
-#   - tar       (as portable as can be) (merely: cf, tf, xf)
-#   - bzip2     (widely used) -d, -z
-#   - xz        (widely used) -d, -z, -c, -T
-#   - gzip      (widely used) -d, -6
-#   - zstd      (optional)    -d, -z, -c
-#   - unzip     (optional)
-#   - lzma      (optional)
-#   - lzip      (optional)
-#
-# Dylan Araps.
+# Created by Dylan Araps.
 
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