Don't blank pad day of the month when formatting dates

We are currently using `%e` which adds a space before the result if the
digit is a single number. This leads to strings like `February  2, 2016`
which is undesireable. I've opted to replace with 0 padding instead of
removing the padding entirely, to preserve compatibility for those
relying on the fact that the width is constant, and to be consistent
with time formatting.

Fixes #25251.

1 files changed, 3 insertions, 3 deletions

diff --git a/activesupport/lib/active_support/core_ext/date/conversions.rb b/activesupport/lib/active_support/core_ext/date/conversions.rb
index 9a6d7bb415..6e3b4a89ce 100644
--- a/activesupport/lib/active_support/core_ext/date/conversions.rb
+++ b/activesupport/lib/active_support/core_ext/date/conversions.rb
@@ -5,15 +5,15 @@ require 'active_support/core_ext/module/remove_method'
 
 class Date
   DATE_FORMATS = {
-    :short        => '%e %b',
-    :long         => '%B %e, %Y',
+    :short        => '%d %b',
+    :long         => '%B %d, %Y',
     :db           => '%Y-%m-%d',
     :number       => '%Y%m%d',
     :long_ordinal => lambda { |date|
       day_format = ActiveSupport::Inflector.ordinalize(date.day)
       date.strftime("%B #{day_format}, %Y") # => "April 25th, 2007"
     },
-    :rfc822       => '%e %b %Y',
+    :rfc822       => '%d %b %Y',
     :iso8601      => lambda { |date| date.iso8601 }
   }