style(rubocop): fix all safe auto correctable offenses

lib/postal/message_inspectors/spam_assassin.rb

@@ -3,8 +3,8 @@ module Postal
     class SpamAssassin < MessageInspector
 
       EXCLUSIONS = {
-        :outgoing => ['NO_RECEIVED', 'NO_RELAYS', 'ALL_TRUSTED', 'FREEMAIL_FORGED_REPLYTO', 'RDNS_DYNAMIC', 'CK_HELO_GENERIC', /^SPF\_/, /^HELO\_/, /DKIM_/, /^RCVD_IN_/],
-        :incoming => []
+        outgoing: ["NO_RECEIVED", "NO_RELAYS", "ALL_TRUSTED", "FREEMAIL_FORGED_REPLYTO", "RDNS_DYNAMIC", "CK_HELO_GENERIC", /^SPF_/, /^HELO_/, /DKIM_/, /^RCVD_IN_/],
+        incoming: []
       }
 
       def inspect_message(inspection)
@@ -24,11 +24,11 @@ module Postal
         total = 0.0
         rules = data ? data.split(/^---(.*)\r?\n/).last.split(/\r?\n/) : []
         while line = rules.shift
-          if line =~ /\A([\- ]?[\d\.]+)\s+(\w+)\s+(.*)/
-            total += $1.to_f
-            spam_checks << SpamCheck.new($2, $1.to_f, $3)
+          if line =~ /\A([- ]?[\d.]+)\s+(\w+)\s+(.*)/
+            total += ::Regexp.last_match(1).to_f
+            spam_checks << SpamCheck.new(::Regexp.last_match(2), ::Regexp.last_match(1).to_f, ::Regexp.last_match(3))
           else
-            spam_checks.last.description << " " + line.strip
+            spam_checks.last.description << (" " + line.strip)
           end
         end
 
@@ -36,17 +36,18 @@ module Postal
         checks.each do |check|
           inspection.spam_checks << check
         end
-
       rescue Timeout::Error
         inspection.spam_checks << SpamCheck.new("TIMEOUT", 0, "Timed out when scanning for spam")
-
-      rescue => e
+      rescue StandardError => e
         logger.error "Error talking to spamd: #{e.class} (#{e.message})"
-        logger.error e.backtrace[0,5]
+        logger.error e.backtrace[0, 5]
         inspection.spam_checks << SpamCheck.new("ERROR", 0, "Error when scanning for spam")
-
       ensure
-        tcp_socket.close rescue nil
+        begin
+          tcp_socket.close
+        rescue StandardError
+          nil
+        end
       end
 
     end