Use long-names

Instead of "$0" use $PROGRAM_NAME, instead of $! use "$LOAD_PATH".  This
is more explicit and less-magic.

Flagged by rubocop

6 files changed, 6 insertions, 6 deletions

diff --git a/bin/custodian-dequeue b/bin/custodian-dequeue
index 46a62da..349ff31 100755
--- a/bin/custodian-dequeue
+++ b/bin/custodian-dequeue
@@ -57,7 +57,7 @@ require 'custodian/worker'
 #
 #  Entry-point to our code.
 #
-if __FILE__ == $0 then
+if __FILE__ == $PROGRAM_NAME then
 
   $help    = false
   $manual  = false
diff --git a/bin/custodian-enqueue b/bin/custodian-enqueue
index 86c253f..75d38ac 100755
--- a/bin/custodian-enqueue
+++ b/bin/custodian-enqueue
@@ -63,7 +63,7 @@ require 'custodian/settings'
 #
 #  Entry-point to our code.
 #
-if __FILE__ == $0 then
+if __FILE__ == $PROGRAM_NAME then
 
   $help   = false
   $manual = false
diff --git a/bin/custodian-queue b/bin/custodian-queue
index 978cbda..ed2c3be 100755
--- a/bin/custodian-queue
+++ b/bin/custodian-queue
@@ -52,7 +52,7 @@ require 'custodian/queue'
 #
 #  Entry-point to our code.
 #
-if __FILE__ == $0 then
+if __FILE__ == $PROGRAM_NAME then
 
   $FLUSH   = false
   $STATS   = false
diff --git a/bin/multi-ping b/bin/multi-ping
index ef14c4c..00ae466 100755
--- a/bin/multi-ping
+++ b/bin/multi-ping
@@ -106,7 +106,7 @@ hostname = ARGV.shift
 #  Abort if we don't have a hostname
 #
 if ( hostname.nil? )
-  puts "Usage: #{$0} hostname"
+  puts "Usage: #{$PROGRAM_NAME} hostname"
   exit 1
 end
 
diff --git a/lib/custodian/protocoltest/tcp.rb b/lib/custodian/protocoltest/tcp.rb
index 3fd4129..d0da3a3 100644
--- a/lib/custodian/protocoltest/tcp.rb
+++ b/lib/custodian/protocoltest/tcp.rb
@@ -309,7 +309,7 @@ module Custodian
                 return false
               end
             rescue
-              @error = "Exception connecting to host #{host}:#{port} - #{$!}"
+              @error = "Exception connecting to host #{host}:#{port} - #{$ERROR_INFO}"
               return false
             end
           end
diff --git a/t/test-suite b/t/test-suite
index 9500052..02df298 100755
--- a/t/test-suite
+++ b/t/test-suite
@@ -11,7 +11,7 @@
 #
 base = File.dirname(__FILE__)
 %w(bin lib .).each do |d|
-  $: << File.expand_path(File.join(base, "../#{d}"))
+  $LOAD_PATH << File.expand_path(File.join(base, "../#{d}"))
 end
 
 require 'test/unit'