Update change method name to "update_outdated_gems"

Make it less visually similar to "update_gem". Avoid developer confusion

lib/bummr/cli.rb

@@ -43,7 +43,7 @@ def update
         if outdated_gems.empty?
           puts "No outdated gems to update".color(:green)
         else
-          Bummr::Updater.new(outdated_gems).update_gems
+          Bummr::Updater.new(outdated_gems).update_outdated_gems
 
           git.rebase_interactive(BASE_BRANCH)
           test

lib/bummr/updater.rb

@@ -7,7 +7,7 @@ def initialize(outdated_gems)
       @outdated_gems = outdated_gems
     end
 
-    def update_gems
+    def update_outdated_gems
       puts "Updating outdated gems".color(:green)
 
       @outdated_gems.each_with_index do |gem, index|

spec/lib/cli_spec.rb

@@ -33,7 +33,7 @@
     context "when user agrees to move forward" do
       def mock_bummr_standard_flow
         updater = double
-        allow(updater).to receive(:update_gems)
+        allow(updater).to receive(:update_outdated_gems)
 
         expect(cli).to receive(:display_info)
         expect(cli).to receive(:yes?).and_return(true)

spec/lib/updater_spec.rb

@@ -20,12 +20,12 @@
   let(:update_cmd) { "bundle update #{gem[:name]}" }
   let(:git) { Bummr::Git.instance }
 
-  describe "#update_gems" do
+  describe "#update_outdated_gems" do
     it "calls update_gem on each gem" do
       allow(updater).to receive(:update_gem)
       allow(updater).to receive(:puts) # NOOP this function call
 
-      updater.update_gems
+      updater.update_outdated_gems
 
       outdated_gems.each_with_index do |gem, index|
         expect(updater).to have_received(:update_gem).with(gem, index)