Avoid Ruby 2.7 warning (#38)

Author: olleolleolle

bin/ruby_executable_hooks

@@ -14,9 +14,7 @@ end unless $0.end_with?('/executable-hooks-uninstaller')
 
 content = File.read($0)
 
-if
-  (index = content.index("\n#!ruby\n")) && index > 0
-then
+if (index = content.index("\n#!ruby\n")) && index > 0
   skipped_content = content.slice!(0..index)
   start_line = skipped_content.count("\n") + 1
   eval content, binding, $0, start_line