Add missing `+` around a some literals.

Mainly around `nil`

[ci skip]

9 files changed, 13 insertions, 12 deletions

diff --git a/activesupport/lib/active_support/core_ext/hash/compact.rb b/activesupport/lib/active_support/core_ext/hash/compact.rb
index 5cae495bda..e357284be0 100644
--- a/activesupport/lib/active_support/core_ext/hash/compact.rb
+++ b/activesupport/lib/active_support/core_ext/hash/compact.rb
@@ -14,7 +14,7 @@ class Hash
 
   unless Hash.instance_methods(false).include?(:compact!)
     # Replaces current hash with non +nil+ values.
-    # Returns nil if no changes were made, otherwise returns the hash.
+    # Returns +nil+ if no changes were made, otherwise returns the hash.
     #
     #   hash = { a: true, b: false, c: nil }
     #   hash.compact!        # => { a: true, b: false }
diff --git a/activesupport/lib/active_support/core_ext/kernel/reporting.rb b/activesupport/lib/active_support/core_ext/kernel/reporting.rb
index d0197af95f..c02618d5f3 100644
--- a/activesupport/lib/active_support/core_ext/kernel/reporting.rb
+++ b/activesupport/lib/active_support/core_ext/kernel/reporting.rb
@@ -1,7 +1,7 @@
 module Kernel
   module_function
 
-  # Sets $VERBOSE to nil for the duration of the block and back to its original
+  # Sets $VERBOSE to +nil+ for the duration of the block and back to its original
   # value afterwards.
   #
   #   silence_warnings do
diff --git a/activesupport/lib/active_support/core_ext/securerandom.rb b/activesupport/lib/active_support/core_ext/securerandom.rb
index 92392d1a92..82841aa11a 100644
--- a/activesupport/lib/active_support/core_ext/securerandom.rb
+++ b/activesupport/lib/active_support/core_ext/securerandom.rb
@@ -6,7 +6,7 @@ module SecureRandom
   #
   # The argument _n_ specifies the length, of the random string to be generated.
   #
-  # If _n_ is not specified or is nil, 16 is assumed. It may be larger in the future.
+  # If _n_ is not specified or is +nil+, 16 is assumed. It may be larger in the future.
   #
   # The result may contain alphanumeric characters except 0, O, I and l
   #
diff --git a/activesupport/lib/active_support/core_ext/string/access.rb b/activesupport/lib/active_support/core_ext/string/access.rb
index caa48e34c5..6133826f37 100644
--- a/activesupport/lib/active_support/core_ext/string/access.rb
+++ b/activesupport/lib/active_support/core_ext/string/access.rb
@@ -3,7 +3,7 @@ class String
   # position. The first character of the string is at position 0, the next at
   # position 1, and so on. If a range is supplied, a substring containing
   # characters at offsets given by the range is returned. In both cases, if an
-  # offset is negative, it is counted from the end of the string. Returns nil
+  # offset is negative, it is counted from the end of the string. Returns +nil+
   # if the initial offset falls outside the string. Returns an empty string if
   # the beginning of the range is greater than the end of the string.
   #
@@ -17,7 +17,7 @@ class String
   #
   # If a Regexp is given, the matching portion of the string is returned.
   # If a String is given, that given string is returned if it occurs in
-  # the string. In both cases, nil is returned if there is no match.
+  # the string. In both cases, +nil+ is returned if there is no match.
   #
   #   str = "hello"
   #   str.at(/lo/) # => "lo"
diff --git a/activesupport/lib/active_support/core_ext/string/inflections.rb b/activesupport/lib/active_support/core_ext/string/inflections.rb
index 7e12700c8c..765c0919bb 100644
--- a/activesupport/lib/active_support/core_ext/string/inflections.rb
+++ b/activesupport/lib/active_support/core_ext/string/inflections.rb
@@ -67,7 +67,7 @@ class String
   end
 
   # +safe_constantize+ tries to find a declared constant with the name specified
-  # in the string. It returns nil when the name is not in CamelCase
+  # in the string. It returns +nil+ when the name is not in CamelCase
   # or is not initialized.  See ActiveSupport::Inflector.safe_constantize
   #
   #   'Module'.safe_constantize  # => Module
diff --git a/activesupport/lib/active_support/json/encoding.rb b/activesupport/lib/active_support/json/encoding.rb
index cee731417f..8ff3551edc 100644
--- a/activesupport/lib/active_support/json/encoding.rb
+++ b/activesupport/lib/active_support/json/encoding.rb
@@ -68,7 +68,8 @@ module ActiveSupport
             :ESCAPE_REGEX_WITHOUT_HTML_ENTITIES, :EscapedString
 
           # Convert an object into a "JSON-ready" representation composed of
-          # primitives like Hash, Array, String, Numeric, and true/false/nil.
+          # primitives like Hash, Array, String, Numeric,
+          # and +true+/+false+/+nil+.
           # Recursively calls #as_json to the object to recursively build a
           # fully JSON-ready object.
           #
diff --git a/activesupport/lib/active_support/multibyte/chars.rb b/activesupport/lib/active_support/multibyte/chars.rb
index 938e4ebb72..262f25b874 100644
--- a/activesupport/lib/active_support/multibyte/chars.rb
+++ b/activesupport/lib/active_support/multibyte/chars.rb
@@ -87,7 +87,7 @@ module ActiveSupport #:nodoc:
       end
 
       # Works like <tt>String#slice!</tt>, but returns an instance of
-      # Chars, or nil if the string was not modified. The string will not be
+      # Chars, or +nil+ if the string was not modified. The string will not be
       # modified if the range given is out of bounds
       #
       #   string = 'Welcome'
diff --git a/activesupport/lib/active_support/number_helper.rb b/activesupport/lib/active_support/number_helper.rb
index 7a49bbb960..6000ea44be 100644
--- a/activesupport/lib/active_support/number_helper.rb
+++ b/activesupport/lib/active_support/number_helper.rb
@@ -109,7 +109,7 @@ module ActiveSupport
     # * <tt>:locale</tt> - Sets the locale to be used for formatting
     #   (defaults to current locale).
     # * <tt>:precision</tt> - Sets the precision of the number
-    #   (defaults to 3). Keeps the number's precision if nil.
+    #   (defaults to 3). Keeps the number's precision if +nil+.
     # * <tt>:significant</tt> - If +true+, precision will be the number
     #   of significant_digits. If +false+, the number of fractional
     #   digits (defaults to +false+).
@@ -183,7 +183,7 @@ module ActiveSupport
     # * <tt>:locale</tt> - Sets the locale to be used for formatting
     #   (defaults to current locale).
     # * <tt>:precision</tt> - Sets the precision of the number
-    #   (defaults to 3). Keeps the number's precision if nil.
+    #   (defaults to 3). Keeps the number's precision if +nil+.
     # * <tt>:significant</tt> - If +true+, precision will be the number
     #   of significant_digits. If +false+, the number of fractional
     #   digits (defaults to +false+).
diff --git a/activesupport/lib/active_support/rescuable.rb b/activesupport/lib/active_support/rescuable.rb
index dc3f27a16d..135690cc42 100644
--- a/activesupport/lib/active_support/rescuable.rb
+++ b/activesupport/lib/active_support/rescuable.rb
@@ -74,7 +74,7 @@ module ActiveSupport
       #
       # If no handler matches the exception, check for a handler matching the
       # (optional) exception.cause. If no handler matches the exception or its
-      # cause, this returns nil so you can deal with unhandled exceptions.
+      # cause, this returns +nil+, so you can deal with unhandled exceptions.
       # Be sure to re-raise unhandled exceptions if this is what you expect.
       #
       #     begin
@@ -83,7 +83,7 @@ module ActiveSupport
       #       rescue_with_handler(exception) || raise
       #     end
       #
-      # Returns the exception if it was handled and nil if it was not.
+      # Returns the exception if it was handled and +nil+ if it was not.
       def rescue_with_handler(exception, object: self)
         if handler = handler_for_rescue(exception, object: object)
           handler.call exception