zsh: add systemd-path completions

shell-completion/zsh/_systemd-path

@@ -0,0 +1,8 @@
+#compdef systemd-path
+
+typeset -A sdpath=( ${$(systemd-path)/:/} )
+_arguments -S \
+	'(-h --help)'{-h,--help}'[Print help text and exit]' \
+	'(-v --version)'{-v,--version}'[Print a version string and exit]' \
+	'--suffix=[Append a suffix to the paths]' \
+	'*:pathname:compadd -k sdpath'

shell-completion/zsh/meson.build

@@ -17,6 +17,7 @@ if zshcompletiondir != 'no'
                  ['_systemd-delta',            ''],
                  ['_systemd-nspawn',           ''],
                  ['_systemd',                  ''],
+                 ['_systemd-path',             ''],
                  ['_systemd-run',              ''],
                  ['_udevadm',                  ''],
                  ['_kernel-install',           ''],