Esto va asi

zoholib.gemspec

@@ -27,8 +27,8 @@ Gem::Specification.new do |spec|
   spec.files = `git ls-files -z`.split("\x0").reject do |f|
     f.match(%r{^(test|spec|features)/})
   end
-  spec.bindir        = 'bin'
-  spec.executables   = spec.files.grep(%r{^zoholib/}) { |f| File.basename(f) }
+  spec.bindir        = 'exe'
+  spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ['lib']
 
    spec.add_development_dependency 'bundler', '~> 1.15'