Minor refactoring in seeding

db/fixtures/development/05_users.rb

 Gitlab::Seeder.quiet do
-  (2..20).each  do |i|
+  20.times do |i|
     begin
       User.create!(
         username: FFaker::Internet.user_name,
@@ -15,7 +15,7 @@ Gitlab::Seeder.quiet do
     end
   end
 
-  (1..5).each do |i|
+  5.times do |i|
     begin
       User.create!(
         username: "user#{i}",

db/fixtures/development/07_milestones.rb

 Gitlab::Seeder.quiet do
   Project.all.each do |project|
-    (1..5).each  do |i|
+    5.times do |i|
       milestone_params = {
         title: "v#{i}.0",
         description: FFaker::Lorem.sentence,

db/fixtures/development/09_issues.rb

 Gitlab::Seeder.quiet do
   Project.all.each do |project|
-    (1..10).each  do |i|
+    10.times do
       issue_params = {
         title: FFaker::Lorem.sentence(6),
         description: FFaker::Lorem.sentence,

db/fixtures/development/12_snippets.rb

@@ -22,7 +22,7 @@ class Member < ActiveRecord::Base
 end
 eos
 
-  (1..50).each  do |i|
+  50.times do |i|
     user = User.all.sample
 
     PersonalSnippet.seed(:id, [{