Merge pull request #861 from taketo1113/fix-error-handle-crontab-output

Handle crontab output to prevent SIGPIPE when running on CentOS Stream 10

Author: taketo1113

lib/whenever/command_line.rb

@@ -78,6 +78,8 @@ def write_crontab(contents)
       IO.popen(command.join(' '), 'r+') do |crontab|
         crontab.write(contents)
         crontab.close_write
+        stdout = crontab.read
+        puts stdout unless stdout == ''
       end
 
       success = $?.exitstatus.zero?