[rubygems/rubygems] Bundler: avoid use of "can not" in spec literals

Signed-off-by: Takuya Noguchi <takninnovationresearch@gmail.com>

https://github.com/rubygems/rubygems/commit/73b5cf9bd1

spec/bundler/commands/init_spec.rb

@@ -42,7 +42,7 @@ RSpec.describe "bundle init" do
   context "when the dir is not writable by the current user" do
     let(:subdir) { "child_dir" }
 
-    it "notifies the user that it can not write to it" do
+    it "notifies the user that it cannot write to it" do
       FileUtils.mkdir bundled_app(subdir)
       # chmod a-w it
       mode = File.stat(bundled_app(subdir)).mode ^ 0o222

spec/bundler/commands/remove_spec.rb

@@ -522,7 +522,7 @@ RSpec.describe "bundle remove" do
       end
     end
 
-    context "when gems can not be removed from other gemfile" do
+    context "when gems cannot be removed from other gemfile" do
       it "shows error" do
         create_file "Gemfile-other", <<-G
           gem "rails"; gem "rack"
@@ -574,7 +574,7 @@ RSpec.describe "bundle remove" do
     end
 
     context "when gem present in gemfiles but could not be removed from one from one of them" do
-      it "removes gem which can be removed and shows warning for file from which it can not be removed" do
+      it "removes gem which can be removed and shows warning for file from which it cannot be removed" do
         create_file "Gemfile-other", <<-G
           gem "rack"
         G