update-report: further tweak analytics output.

There were some bugs with the use of `HOMEBREW_NO_ANALYTICS_THIS_RUN`
and some output glitches I missed with the previous PR (#1575).

Library/Homebrew/cmd/update-report.rb

@@ -26,16 +26,16 @@ module Homebrew
       analytics_disabled = \
         Utils.popen_read("git", "config", "--local", "--get", "homebrew.analyticsdisabled").chuzzle
       if analytics_message_displayed != "true" && analytics_disabled != "true" &&
-         !ENV["HOMEBREW_NO_ANALYTICS"] && !ENV["HOMEBREW_NO_ANALYTICS_THIS_RUN"]
+         !ENV["HOMEBREW_NO_ANALYTICS"]
         ENV["HOMEBREW_NO_ANALYTICS_THIS_RUN"] = "1"
         # Use the shell's audible bell.
         print "\a"
 
         # Use an extra newline and bold to avoid this being missed.
-        ohai <<-EOS.undent
-          Homebrew has enabled anonymous aggregate user behaviour analytics
-          Read the analytics documentation (and how to opt-out) here:
-            https://git.io/brew-analytics
+        ohai "Homebrew has enabled anonymous aggregate user behaviour analytics."
+        puts <<-EOS.undent
+          #{Tty.bold}Read the analytics documentation (and how to opt-out) here:
+            #{Formatter.url("https://git.io/brew-analytics")}#{Tty.reset}
 
         EOS