PATCH: completion updates for some Unix utilities on macOS

[Oliver Kiddle <opk@xxxxxxx>]

These updates are based on macOS 15.5 which isn't the latest but that
was the version on the Apple system I was briefly able to gain access
to. This is based on diffs of help output.

Oliver

diff --git a/Completion/Unix/Command/_date b/Completion/Unix/Command/_date
index f70fc3722..6cc2d42cb 100644
--- a/Completion/Unix/Command/_date
+++ b/Completion/Unix/Command/_date
@@ -69,7 +69,7 @@ else
     ;|
     dragonfly*|darwin*)
       args+=(
-	'(-R)-I-[display in ISO 8601 format]::precision [date]:(date hours minutes seconds)'
+	'(-R)-I-[display in ISO 8601 format]::precision [date]:(date hours minutes seconds ns)'
       )
     ;|
     freebsd<-12>.*)
@@ -80,7 +80,7 @@ else
     ;|
     openbsd*|netbsd*) args+=( '-a[gradually skew]' )
     ;|
-    freebsd<14->.*|openbsd*)
+    darwin*|freebsd<14->.*|openbsd*)
       args+=( '-z+[specify timezone for output]:time zone:_time_zone')
     ;|
     freebsd*)
diff --git a/Completion/Unix/Command/_env b/Completion/Unix/Command/_env
index 89a45e4a4..7d86f4fd2 100644
--- a/Completion/Unix/Command/_env
+++ b/Completion/Unix/Command/_env
@@ -29,11 +29,11 @@ case $variant in
       '-U[add variables from user and system login.conf(5)]: :->user-class'
     )
   ;|
-  freebsd*|netbsd*)
-    args+=( '-C+[change working directory]:directory:_directories' )
-  ;|
-  freebsd*|darwin*|netbsd*)
-    args+=( '-0[use NUL, not newline after each variable in output]' )
+  darwin*|freebsd*|netbsd*)
+    args+=(
+      '-C+[change working directory]:directory:_directories'
+      '-0[use NUL, not newline after each variable in output]'
+    )
   ;|
   freebsd*|darwin*|dragonfly*|netbsd*|openbsd*)
     args+=(
diff --git a/Completion/Unix/Command/_ping b/Completion/Unix/Command/_ping
index 95e1fd604..09e5ed1f6 100644
--- a/Completion/Unix/Command/_ping
+++ b/Completion/Unix/Command/_ping
@@ -183,6 +183,8 @@ case ${variant}:${${service#ping}:-4} in
       '-k+[specify traffic class to use for sending ICMP packets]:traffic class [CTL]:(BK_SYS BK BE RD OAM AV RV VI VO CTL)'
       '--apple-connect[connects the socket to the destination address]'
       '--apple-time[prints the time a packet was received]'
+      '--apple-print-id[display echo ID]'
+      '--apple-print-req[display echo request]'
     )
   ;;
   openbsd*)