Prefer single-quotes when you don't need interpolation.

So "foo" is less good than 'foo'.

2 files changed, 4 insertions, 4 deletions

diff --git a/lib/custodian/util/ping.rb b/lib/custodian/util/ping.rb
index 771cfd6..cf79754 100644
--- a/lib/custodian/util/ping.rb
+++ b/lib/custodian/util/ping.rb
@@ -26,8 +26,8 @@ module Custodian
       #
       def initialize( hostname )
 
-        raise ArgumentError, "Hostname must not be nil" if  hostname.nil? 
-        raise ArgumentError, "Hostname must be a String" unless  hostname.kind_of?( String )
+        raise ArgumentError, 'Hostname must not be nil' if  hostname.nil? 
+        raise ArgumentError, 'Hostname must be a String' unless  hostname.kind_of?( String )
 
         @hostname = hostname
         @resolved = Custodian::Util::DNS.hostname_to_ip( hostname )
@@ -83,7 +83,7 @@ module Custodian
             return true
           end
         else
-          puts "ERROR: Resolved to neither an IPv6 or IPv4 address."
+          puts 'ERROR: Resolved to neither an IPv6 or IPv4 address.'
         end
         false
       end
diff --git a/lib/custodian/util/timespan.rb b/lib/custodian/util/timespan.rb
index 36e8d9e..a033675 100644
--- a/lib/custodian/util/timespan.rb
+++ b/lib/custodian/util/timespan.rb
@@ -33,7 +33,7 @@ module Custodian
         #
         #  Ensure within a valid range
         #
-        raise ArgumentError, "Integer required for time"   unless( desc.kind_of? Integer )
+        raise ArgumentError, 'Integer required for time'   unless( desc.kind_of? Integer )
         raise ArgumentError,  "Invalid time: #{desc}" unless( ( desc >= 0 ) && ( desc <= 23 ) )