Fix (auto-correct) more RSpec/BeNil offenses

- The `RSpec/BeEq` auto-corrections made more `RSpec/BeNil` offenses, so another go of `brew style --only=RSpec/BeNil --fix\` is needed.

Library/Homebrew/test/checksum_spec.rb

@@ -18,6 +18,6 @@ describe Checksum do
 
     it { is_expected.to eq(other) }
     it { is_expected.not_to eq(other_reversed) }
-    it { is_expected.not_to be(nil) }
+    it { is_expected.not_to be_nil }
   end
 end

Library/Homebrew/test/formula_spec.rb

@@ -719,7 +719,7 @@ describe Formula do
         url "https://brew.sh/test-1.0.tbz"
       end
 
-      expect(f.service).to be(nil)
+      expect(f.service).to be_nil
     end
 
     specify "service complicated" do
@@ -735,7 +735,7 @@ describe Formula do
         working_dir var
         keep_alive true
       end
-      expect(f.service).not_to be(nil)
+      expect(f.service).not_to be_nil
     end
 
     specify "service uses simple run" do
@@ -746,7 +746,7 @@ describe Formula do
         end
       end
 
-      expect(f.service).not_to be(nil)
+      expect(f.service).not_to be_nil
     end
 
     specify "service helpers return data" do

Library/Homebrew/test/livecheck/livecheck_spec.rb

@@ -142,10 +142,10 @@ describe Homebrew::Livecheck do
     end
 
     it "returns nil when not given a string or valid symbol" do
-      expect(livecheck.livecheck_url_to_string(nil, f_livecheck_url)).to be(nil)
-      expect(livecheck.livecheck_url_to_string(nil, c_livecheck_url)).to be(nil)
-      expect(livecheck.livecheck_url_to_string(:invalid_symbol, f_livecheck_url)).to be(nil)
-      expect(livecheck.livecheck_url_to_string(:invalid_symbol, c_livecheck_url)).to be(nil)
+      expect(livecheck.livecheck_url_to_string(nil, f_livecheck_url)).to be_nil
+      expect(livecheck.livecheck_url_to_string(nil, c_livecheck_url)).to be_nil
+      expect(livecheck.livecheck_url_to_string(:invalid_symbol, f_livecheck_url)).to be_nil
+      expect(livecheck.livecheck_url_to_string(:invalid_symbol, c_livecheck_url)).to be_nil
     end
   end
 

Library/Homebrew/test/livecheck/skip_conditions_spec.rb

@@ -458,11 +458,11 @@ describe Homebrew::Livecheck::SkipConditions do
     end
 
     it "returns an empty hash for a non-skippable formula" do
-      expect(skip_conditions.referenced_skip_information(formulae[:basic], original_name)).to be(nil)
+      expect(skip_conditions.referenced_skip_information(formulae[:basic], original_name)).to be_nil
     end
 
     it "returns an empty hash for a non-skippable cask" do
-      expect(skip_conditions.referenced_skip_information(casks[:basic], original_name)).to be(nil)
+      expect(skip_conditions.referenced_skip_information(casks[:basic], original_name)).to be_nil
     end
   end
 

Library/Homebrew/test/os/linux/formula_spec.rb

@@ -54,7 +54,7 @@ describe Formula do
 
       expect(f.class.stable.deps[0].name).to eq("hello_both")
       expect(f.class.stable.deps[1].name).to eq("hello_linux")
-      expect(f.class.stable.deps[2]).to be(nil)
+      expect(f.class.stable.deps[2]).to be_nil
     end
 
     it "adds a patch on Linux only" do

Library/Homebrew/test/os/mac/formula_spec.rb

@@ -59,7 +59,7 @@ describe Formula do
 
       expect(f.class.stable.deps[0].name).to eq("hello_both")
       expect(f.class.stable.deps[1].name).to eq("hello_macos")
-      expect(f.class.stable.deps[2]).to be(nil)
+      expect(f.class.stable.deps[2]).to be_nil
     end
 
     it "adds a patch on Mac only" do

Library/Homebrew/test/utils/git_repository_spec.rb

@@ -7,7 +7,7 @@ describe Utils do
   shared_examples "git_repository helper function" do |method_name|
     context "when directory is not a Git repository" do
       it "returns nil if `safe` parameter is `false`" do
-        expect(described_class.public_send(method_name, TEST_TMPDIR, safe: false)).to be(nil)
+        expect(described_class.public_send(method_name, TEST_TMPDIR, safe: false)).to be_nil
       end
 
       it "raises an error if `safe` parameter is `true`" do
@@ -22,7 +22,7 @@ describe Utils do
       end
 
       it "returns nil if `safe` parameter is `false`" do
-        expect(described_class.public_send(method_name, HOMEBREW_CACHE, safe: false)).to be(nil)
+        expect(described_class.public_send(method_name, HOMEBREW_CACHE, safe: false)).to be_nil
       end
 
       it "raises an error if `safe` parameter is `true`" do

Library/Homebrew/test/utils/git_spec.rb

@@ -142,7 +142,7 @@ describe Utils::Git do
   describe "::path" do
     it "returns nil when git is not available" do
       stub_const("HOMEBREW_SHIMS_PATH", HOMEBREW_PREFIX/"bin/shim")
-      expect(described_class.path).to be(nil)
+      expect(described_class.path).to be_nil
     end
 
     it "returns path of git when git is available" do
@@ -153,7 +153,7 @@ describe Utils::Git do
   describe "::version" do
     it "returns nil when git is not available" do
       stub_const("HOMEBREW_SHIMS_PATH", HOMEBREW_PREFIX/"bin/shim")
-      expect(described_class.version).to be(nil)
+      expect(described_class.version).to be_nil
     end
 
     it "returns version of git when git is available" do

Library/Homebrew/test/utils/pypi_spec.rb

@@ -174,11 +174,11 @@ describe PyPI do
     end
 
     it "returns nil for invalid versions" do
-      expect(described_class.update_pypi_url(old_package_url, "0.0.0")).to be nil
+      expect(described_class.update_pypi_url(old_package_url, "0.0.0")).to be_nil
     end
 
     it "returns nil for non-pypi urls" do
-      expect(described_class.update_pypi_url("https://brew.sh/foo-1.0.tgz", "1.1")).to be nil
+      expect(described_class.update_pypi_url("https://brew.sh/foo-1.0.tgz", "1.1")).to be_nil
     end
   end
 end

Library/Homebrew/test/utils/spdx_spec.rb

@@ -6,11 +6,11 @@ require "utils/spdx"
 describe SPDX do
   describe ".license_data" do
     it "has the license list version" do
-      expect(described_class.license_data["licenseListVersion"]).not_to be(nil)
+      expect(described_class.license_data["licenseListVersion"]).not_to be_nil
     end
 
     it "has the release date" do
-      expect(described_class.license_data["releaseDate"]).not_to be(nil)
+      expect(described_class.license_data["releaseDate"]).not_to be_nil
     end
 
     it "has licenses" do
@@ -20,11 +20,11 @@ describe SPDX do
 
   describe ".exception_data" do
     it "has the license list version" do
-      expect(described_class.exception_data["licenseListVersion"]).not_to be(nil)
+      expect(described_class.exception_data["licenseListVersion"]).not_to be_nil
     end
 
     it "has the release date" do
-      expect(described_class.exception_data["releaseDate"]).not_to be(nil)
+      expect(described_class.exception_data["releaseDate"]).not_to be_nil
     end
 
     it "has exceptions" do