bin/overcommit in overcommit-0.58.0 vs bin/overcommit in overcommit-0.59.0

@@ -16,18 +16,19 @@
       $stderr = File.new(File::NULL, 'w')
       Bundler.setup
     ensure
       $stderr = old_stderr
     end
-  rescue Bundler::BundlerError => ex
-    puts "Problem loading '#{gemfile}': #{ex.message}"
-    puts "Try running:\nbundle install --gemfile=#{gemfile}" if ex.is_a?(Bundler::GemNotFound)
+  rescue Bundler::BundlerError => e
+    puts "Problem loading '#{gemfile}': #{e.message}"
+    puts "Try running:\nbundle install --gemfile=#{gemfile}" if e.is_a?(Bundler::GemNotFound)
     exit 78 # EX_CONFIG
-  rescue Gem::LoadError => ex
+  rescue Gem::LoadError => e
     # Handle case where user is executing overcommit without `bundle exec` and
     # whose local Gemfile has a gem requirement that does not match a gem
     # requirement of the installed version of Overcommit.
-    raise unless ex.message =~ /already activated/i
+    raise unless e.message =~ /already activated/i
+
     exec('bundle', 'exec', $0, *ARGV)
   end
 end
 
 begin