rubocop: fix Style/SymbolProc

Author: Tom Maher

.rubocop_todo.yml

@@ -711,14 +711,6 @@ Style/StructInheritance:
   Exclude:
     - 'test/test_ldap.rb'
 
-# Offense count: 1
-# Cop supports --auto-correct.
-# Configuration parameters: IgnoredMethods.
-# IgnoredMethods: respond_to, define_method
-Style/SymbolProc:
-  Exclude:
-    - 'test/test_ldif.rb'
-
 # Offense count: 4
 # Cop supports --auto-correct.
 # Configuration parameters: EnforcedStyle, SupportedStyles, AllowSafeAssignment.

test/test_ldif.rb

@@ -76,7 +76,7 @@ def test_ldif
 
   # Must test folded lines and base64-encoded lines as well as normal ones.
   def test_to_ldif
-    data = File.open(TestLdifFilename, "rb") { |f| f.read }
+    data = File.open(TestLdifFilename, "rb", &:read)
     io = StringIO.new(data)
 
     # added .lines to turn to array because 1.9 doesn't have