Quantifier follows nothing in regex; marked by <-- HERE in m/(?:* <-- HERE .bak)|(?:*.old)|(?:/tmp/)|(?:/etc/)|(?:/log/)|(?:/db/)|(?:/backup/)|(?:/local/)|(?:/cover_db/)|(?:/nytprof*)|(?:/etc/config.pl)|(?:blib/)|(?:tmp/)|(?:Makefile)|(?:!Makefile.PL)|(?:pm_to_blib)|(?:MYMETA.*)|(?:*.bat)|(?:/*.pl)|(?:/*.zip)|(?:.perl-version)|(?:$~*)|(?:/node_modules/)|(?:/qc.dat)|(?:/public/img/)|(?:\bRCS\b)|(?:\bCVS\b)|(?:\bSCCS\b)|(?:,v$)|(?:\B\.svn\b)|(?:\B\.git\b)|(?:^\.github\b)|(?:\B\.gitignore\b)|(?:\b_darcs\b)|(?:\B\.cvsignore$)|(?:\bDescrip.MMS$)|(?:\bDESCRIP.MMS$)|(?:\bdescrip.mms$)|(?:\bMANIFEST\.bak)|(?:\bMakefile$)|(?:\bblib/)|(?:\bMakeMaker-\d)|(?:\bpm_to_blib\.ts$)|(?:\bpm_to_blib$)|(?:\bblibdirs\.ts$)|(?:\b_eumm/)|(?:\bBuild$)|(?:\b_build/)|(?:\bBuild.bat$)|(?:\bBuild.COM$)|(?:\bBUILD.COM$)|(?:\bbuild.com$)|(?:\b_build_params$)|(?:~$)|(?:\.old$)|(?:\#$)|(?:\b\.#)|(?:\.bak$)|(?:\.tmp$)|(?:\.#)|(?:\.rej$)|(?:\..*\.sw.?$)|(?:\B\.DS_Store)|(?:\B\._)|(?:\.i[cC]loud$)|(?:\bcover_db\b)|(?:\bcovered\b)|(?:\B\.prove$)|(?:^MYMETA\.)|(?:^META_new\.(?:json|yml))|(?:^\.travis\.yml)|(?:^\.?appveyor.yml)/ at lib/ExtUtils/Manifest.pm line 440.
