Fix pluralization of "seconds" in test output

CHANGELOG.md

@@ -9,6 +9,7 @@ only add here if you are working on a PR
 ### Added
 
 ### Fixed
+- Fixed grammar in duration message to use singular "second" when appropriate (e.g., "Took 1 second" instead of "Took 1 seconds")
 
 ## 5.5.0 - 2025-10-30
 

lib/parallel_tests/cli.rb

@@ -436,7 +436,7 @@ def execute_command_in_parallel(command, num_processes, options)
 
     def report_time_taken(&block)
       seconds = ParallelTests.delta(&block).to_i
-      puts "\nTook #{seconds} seconds#{detailed_duration(seconds)}"
+      puts "\nTook #{pluralize(seconds, 'second')}#{detailed_duration(seconds)}"
     end
 
     def detailed_duration(seconds)

spec/integration_spec.rb

@@ -112,7 +112,7 @@ def self.it_runs_the_default_folder_if_it_exists(type, test_folder)
     expect(result).to include_exactly_times('1 example, 0 failure', 2) # 2 results
     expect(result).to include_exactly_times('2 examples, 0 failures', 1) # 1 summary
     expect(result).to include_exactly_times(/Finished in \d+(\.\d+)? seconds/, 2)
-    expect(result).to include_exactly_times(/Took \d+ seconds/, 1) # parallel summary
+    expect(result).to include_exactly_times(/Took \d+ seconds?/, 1) # parallel summary
 
     # verify empty groups are discarded. if retained then it'd say 4 processes for 2 specs
     expect(result).to include '2 processes for 2 specs, ~ 1 spec per process'