cmd/analytics: note Google Analytics differences.

Be more explicit about when Google Analytics is disabled and when the
is used or not.

Library/Homebrew/cmd/analytics.rb

@@ -22,7 +22,7 @@ module Homebrew
         Turn Homebrew's analytics on or off respectively.
 
         `brew analytics regenerate-uuid`:
-        Regenerate the UUID used for Homebrew's analytics.
+        Regenerate the UUID used for Homebrew's Google Analytics (not InfluxDB).
       EOS
 
       named_args %w[state on off regenerate-uuid], max: 1
@@ -38,7 +38,11 @@ module Homebrew
         puts "Analytics are disabled."
       else
         puts "Analytics are enabled."
-        puts "UUID: #{Utils::Analytics.uuid}" if Utils::Analytics.uuid.present?
+        if Homebrew::EnvConfig.no_google_analytics?
+          puts "Google Analytics are disabled."
+        elsif Utils::Analytics.uuid.present?
+          puts "UUID: #{Utils::Analytics.uuid}"
+        end
       end
     when "on"
       Utils::Analytics.enable!

docs/Manpage.md

@@ -80,7 +80,7 @@ Read more at <https://docs.brew.sh/Analytics>.
 <br>Turn Homebrew's analytics on or off respectively.
 
 `brew analytics regenerate-uuid`
-<br>Regenerate the UUID used for Homebrew's analytics.
+<br>Regenerate the UUID used for Homebrew's Google Analytics (not InfluxDB).
 
 ### `autoremove` [`--dry-run`]
 

manpages/brew.1

@@ -94,7 +94,7 @@ Control Homebrew\'s anonymous aggregate user behaviour analytics\. Read more at
 .
 .P
 \fBbrew analytics regenerate\-uuid\fR
-    Regenerate the UUID used for Homebrew\'s analytics\.
+    Regenerate the UUID used for Homebrew\'s Google Analytics (not InfluxDB)\.
 .
 .SS "\fBautoremove\fR [\fB\-\-dry\-run\fR]"
 Uninstall formulae that were only installed as a dependency of another formula and are now no longer needed\.