treewide: fix update script in by-name (#565163)

pkgs/by-name/_1/_1password-cli/update.sh

@@ -6,7 +6,7 @@ set -eu
 ROOT="$(dirname "$(readlink -f "$0")")"
 NIX_DRV="$ROOT/package.nix"
 if [ ! -f "$NIX_DRV" ]; then
-  echo "ERROR: cannot find default.nix in $ROOT"
+  echo "ERROR: cannot find package.nix in $ROOT"
   exit 1
 fi
 

pkgs/by-name/ca/castopod/update.sh

@@ -3,7 +3,7 @@
 set -euo pipefail
 
 nixpkgs="$(git rev-parse --show-toplevel)"
-castopod_nix="$nixpkgs/pkgs/applications/audio/castopod/default.nix"
+castopod_nix="$(dirname "$0")/package.nix"
 
 # https://www.meetup.com/api/guide/#p02-querying-section
 query='

pkgs/by-name/na/nanorc/package.nix

@@ -47,8 +47,6 @@ stdenv.mkDerivation rec {
     oldVersion="$(nix-instantiate --eval -E "with import ./. {}; lib.getVersion ${pname}" | tr -d '"' | sed 's|\\.|-|g')"
     latestTag="$(git -c 'versionsort.suffix=-' ls-remote --exit-code --refs --sort='version:refname' --tags git@github.com:${owner}/${repo} '*.*.*' | tail --lines=1 | cut --delimiter='/' --fields=3)"
     if [ "$oldVersion" != "$latestTag" ]; then
-      nixpkgs="$(git rev-parse --show-toplevel)"
-      default_nix="$nixpkgs/pkgs/applications/editors/nano/nanorc/default.nix"
       newTag=$(echo $latestTag | sed 's|\.|-|g')
       update-source-version ${pname} "$newTag" --version-key=version --print-changes
     else

pkgs/by-name/up/update-python-libraries/update-python-libraries.py

@@ -6,7 +6,7 @@ You can pass in multiple files or paths.
 
 You'll likely want to use
 ``
-  $ ./update-python-libraries ../../pkgs/development/python-modules/**/default.nix
+  $ ./update-python-libraries ../../development/python-modules/**/default.nix
 ``
 to update all non-pinned libraries in that folder.
 """